diff --git a/apps/essimporter/CMakeLists.txt b/apps/essimporter/CMakeLists.txt
index fc5fae72e..0e742ff54 100644
--- a/apps/essimporter/CMakeLists.txt
+++ b/apps/essimporter/CMakeLists.txt
@@ -17,6 +17,7 @@ set(ESSIMPORTER_FILES
     importscri.cpp
     importscpt.cpp
     importproj.cpp
+    importsplm.cpp
     importercontext.cpp
     converter.cpp
     convertacdt.cpp
diff --git a/apps/essimporter/converter.cpp b/apps/essimporter/converter.cpp
index 5c65332be..2473daf95 100644
--- a/apps/essimporter/converter.cpp
+++ b/apps/essimporter/converter.cpp
@@ -1,12 +1,12 @@
 #include "converter.hpp"
 
 #include <stdexcept>
+#include <algorithm>
 
 #include <osgDB/WriteFile>
 
 #include <components/esm/creaturestate.hpp>
 #include <components/esm/containerstate.hpp>
-#include <components/esm/projectilestate.hpp>
 
 #include "convertcrec.hpp"
 #include "convertcntc.hpp"
@@ -461,11 +461,7 @@ namespace ESSImport
             if (!pnam.isMagic())
             {
                 ESM::ProjectileState out;
-                out.mId = pnam.mArrowId.toString();
-                out.mPosition = pnam.mPosition;
-                out.mOrientation.mValues[0] = out.mOrientation.mValues[1] = out.mOrientation.mValues[2] = 0.0f;
-                out.mOrientation.mValues[3] = 1.0f;
-                out.mActorId = convertActorId(pnam.mActorId.toString(), *mContext);
+                convertBaseState(out, pnam);
 
                 out.mBowId = pnam.mBowId.toString();
                 out.mVelocity = pnam.mVelocity;
@@ -477,16 +473,49 @@ namespace ESSImport
             }
             else
             {
-                // TODO: Implement magic projectile conversion.
+                ESM::MagicBoltState out;
+                convertBaseState(out, pnam);
 
-                /*esm.startRecord(ESM::REC_MPRJ);
-                out.save(esm);
-                esm.endRecord(ESM::REC_MPRJ);*/
+                auto it = std::find_if(mContext->mActiveSpells.begin(), mContext->mActiveSpells.end(),
+                                       [&pnam](const SPLM::ActiveSpell& spell) -> bool { return spell.mIndex == pnam.mSplmIndex; });
 
-                std::cerr << "Warning: Skipped conversion for magic projectile \"" << pnam.mArrowId.toString() << "\" (not implemented)" << std::endl;
-                continue;
+                if (it == mContext->mActiveSpells.end())
+                {
+                    std::cerr << "Warning: Skipped conversion for magic projectile \"" << pnam.mArrowId.toString() << "\" (invalid spell link)" << std::endl;
+                    continue;
+                }
+
+                out.mSpellId = it->mSPDT.mId.toString();
+                out.mSpeed = pnam.mSpeed * 0.001f; // not sure where this factor comes from
+
+                esm.startRecord(ESM::REC_MPRJ);
+                out.save(esm);
+                esm.endRecord(ESM::REC_MPRJ);
             }
         }
     }
 
+    void ConvertPROJ::convertBaseState(ESM::BaseProjectileState& base, const PROJ::PNAM& pnam)
+    {
+        base.mId = pnam.mArrowId.toString();
+        base.mPosition = pnam.mPosition;
+
+        osg::Quat orient;
+        orient.makeRotate(osg::Vec3f(0,1,0), pnam.mVelocity);
+        base.mOrientation = orient;
+
+        base.mActorId = convertActorId(pnam.mActorId.toString(), *mContext);
+    }
+
+    void ConvertSPLM::read(ESM::ESMReader& esm)
+    {
+        mSPLM.load(esm);
+        mContext->mActiveSpells = mSPLM.mActiveSpells;
+    }
+
+    void ConvertSPLM::write(ESM::ESMWriter& esm)
+    {
+        std::cerr << "Warning: Skipped active spell conversion (not implemented)" << std::endl;
+    }
+
 }
diff --git a/apps/essimporter/converter.hpp b/apps/essimporter/converter.hpp
index a640d6756..621b85709 100644
--- a/apps/essimporter/converter.hpp
+++ b/apps/essimporter/converter.hpp
@@ -22,6 +22,7 @@
 #include <components/esm/globalscript.hpp>
 #include <components/esm/queststate.hpp>
 #include <components/esm/stolenitems.hpp>
+#include <components/esm/projectilestate.hpp>
 
 #include "importcrec.hpp"
 #include "importcntc.hpp"
@@ -36,6 +37,7 @@
 #include "importjour.hpp"
 #include "importscpt.hpp"
 #include "importproj.h"
+#include "importsplm.h"
 
 #include "convertacdt.hpp"
 #include "convertnpcc.hpp"
@@ -602,9 +604,19 @@ public:
     virtual void read(ESM::ESMReader& esm) override;
     virtual void write(ESM::ESMWriter& esm) override;
 private:
+    void convertBaseState(ESM::BaseProjectileState& base, const PROJ::PNAM& pnam);
     PROJ mProj;
 };
 
+class ConvertSPLM : public Converter
+{
+public:
+    virtual void read(ESM::ESMReader& esm) override;
+    virtual void write(ESM::ESMWriter& esm) override;
+private:
+    SPLM mSPLM;
+};
+
 }
 
 #endif
diff --git a/apps/essimporter/importer.cpp b/apps/essimporter/importer.cpp
index 4c8222c56..73b15baae 100644
--- a/apps/essimporter/importer.cpp
+++ b/apps/essimporter/importer.cpp
@@ -271,6 +271,7 @@ namespace ESSImport
         const unsigned int recSTLN = ESM::FourCC<'S','T','L','N'>::value;
         const unsigned int recGAME = ESM::FourCC<'G','A','M','E'>::value;
         const unsigned int recJOUR = ESM::FourCC<'J','O','U','R'>::value;
+        const unsigned int recSPLM = ESM::FourCC<'S','P','L','M'>::value;
 
         std::map<unsigned int, std::shared_ptr<Converter> > converters;
         converters[ESM::REC_GLOB] = std::shared_ptr<Converter>(new ConvertGlobal());
@@ -304,12 +305,12 @@ namespace ESSImport
         converters[recJOUR      ] = std::shared_ptr<Converter>(new ConvertJOUR());
         converters[ESM::REC_SCPT] = std::shared_ptr<Converter>(new ConvertSCPT());
         converters[ESM::REC_PROJ] = std::shared_ptr<Converter>(new ConvertPROJ());
+        converters[recSPLM] = std::shared_ptr<Converter>(new ConvertSPLM());
 
         // TODO:
         // - REGN (weather in certain regions?)
         // - VFXM
         // - SPLM (active spell effects)
-        // - PROJ (magic projectiles in air)
 
         std::set<unsigned int> unknownRecords;
 
diff --git a/apps/essimporter/importercontext.hpp b/apps/essimporter/importercontext.hpp
index 4896f5594..86501b3cb 100644
--- a/apps/essimporter/importercontext.hpp
+++ b/apps/essimporter/importercontext.hpp
@@ -15,7 +15,7 @@
 #include "importcrec.hpp"
 #include "importcntc.hpp"
 #include "importplayer.hpp"
-
+#include "importsplm.h"
 
 
 
@@ -54,6 +54,8 @@ namespace ESSImport
         std::map<std::string, ESM::Creature> mCreatures;
         std::map<std::string, ESM::NPC> mNpcs;
 
+        std::vector<SPLM::ActiveSpell> mActiveSpells;
+
         Context()
             : mDay(0)
             , mMonth(0)
diff --git a/apps/essimporter/importsplm.cpp b/apps/essimporter/importsplm.cpp
new file mode 100644
index 000000000..9fdba4ddb
--- /dev/null
+++ b/apps/essimporter/importsplm.cpp
@@ -0,0 +1,43 @@
+#include "importsplm.h"
+
+#include <components/esm/esmreader.hpp>
+
+namespace ESSImport
+{
+
+void SPLM::load(ESM::ESMReader& esm)
+{
+    while (esm.isNextSub("NAME"))
+    {
+        ActiveSpell spell;
+        esm.getHT(spell.mIndex);
+        esm.getHNT(spell.mSPDT, "SPDT");
+        spell.mTarget = esm.getHNOString("TNAM");
+
+        while (esm.isNextSub("NPDT"))
+        {
+            ActiveEffect effect;
+            esm.getHT(effect.mNPDT);
+
+            // Effect-specific subrecords can follow:
+            // - INAM for disintegration and bound effects
+            // - CNAM for summoning and command effects
+            // - VNAM for vampirism
+            // NOTE: There can be multiple INAMs per effect.
+            // TODO: Needs more research.
+
+            esm.skipHSubUntil("NAM0"); // sentinel
+            esm.getSubName();
+            esm.skipHSub();
+
+            spell.mActiveEffects.push_back(effect);
+        }
+
+        unsigned char xnam; // sentinel
+        esm.getHNT(xnam, "XNAM");
+
+        mActiveSpells.push_back(spell);
+    }
+}
+
+}
diff --git a/apps/essimporter/importsplm.h b/apps/essimporter/importsplm.h
new file mode 100644
index 000000000..8fd5c2bb5
--- /dev/null
+++ b/apps/essimporter/importsplm.h
@@ -0,0 +1,81 @@
+#ifndef OPENMW_ESSIMPORT_IMPORTSPLM_H
+#define OPENMW_ESSIMPORT_IMPORTSPLM_H
+
+#include <vector>
+#include <components/esm/esmcommon.hpp>
+#include <components/esm/util.hpp>
+
+namespace ESM
+{
+    class ESMReader;
+}
+
+namespace ESSImport
+{
+
+struct SPLM
+{
+
+#pragma pack(push)
+#pragma pack(1)
+    struct SPDT // 160 bytes
+    {
+        int mType; // 1 = spell, 2 = enchantment, 3 = potion
+        ESM::NAME32 mId; // base ID of a spell/enchantment/potion
+        unsigned char mUnknown[4*4];
+        ESM::NAME32 mCasterId;
+        ESM::NAME32 mSourceId; // empty for spells
+        unsigned char mUnknown2[4*11];
+    };
+
+    struct NPDT // 56 bytes
+    {
+        ESM::NAME32 mAffectedActorId;
+        unsigned char mUnknown[4*2];
+        int mMagnitude;
+        float mSecondsActive;
+        unsigned char mUnknown2[4*2];
+    };
+
+    struct INAM // 40 bytes
+    {
+        int mUnknown;
+        unsigned char mUnknown2;
+        ESM::FIXED_STRING<35> mItemId; // disintegrated item / bound item / item to re-equip after expiration
+    };
+
+    struct CNAM // 36 bytes
+    {
+        int mUnknown; // seems to always be 0
+        ESM::NAME32 mSummonedOrCommandedActor[32];
+    };
+
+    struct VNAM // 4 bytes
+    {
+        int mUnknown;
+    };
+
+
+#pragma pack(pop)
+
+    struct ActiveEffect
+    {
+        NPDT mNPDT;
+    };
+
+    struct ActiveSpell
+    {
+        int mIndex;
+        SPDT mSPDT;
+        std::string mTarget;
+        std::vector<ActiveEffect> mActiveEffects;
+    };
+
+    std::vector<ActiveSpell> mActiveSpells;
+
+    void load(ESM::ESMReader& esm);
+};
+
+}
+
+#endif
diff --git a/apps/openmw/mwbase/world.hpp b/apps/openmw/mwbase/world.hpp
index 5e76d82eb..038535939 100644
--- a/apps/openmw/mwbase/world.hpp
+++ b/apps/openmw/mwbase/world.hpp
@@ -487,8 +487,7 @@ namespace MWBase
 
             virtual void castSpell (const MWWorld::Ptr& actor) = 0;
 
-            virtual void launchMagicBolt (const std::string& spellId, bool stack, const ESM::EffectList& effects,
-                                          const MWWorld::Ptr& caster, const std::string& sourceName, const osg::Vec3f& fallbackDirection) = 0;
+            virtual void launchMagicBolt (const std::string& spellId, const MWWorld::Ptr& caster, const osg::Vec3f& fallbackDirection) = 0;
             virtual void launchProjectile (MWWorld::Ptr actor, MWWorld::ConstPtr projectile,
                                            const osg::Vec3f& worldPos, const osg::Quat& orient, MWWorld::Ptr bow, float speed, float attackStrength) = 0;
 
diff --git a/apps/openmw/mwmechanics/spellcasting.cpp b/apps/openmw/mwmechanics/spellcasting.cpp
index f7ee15bf4..a808b8285 100644
--- a/apps/openmw/mwmechanics/spellcasting.cpp
+++ b/apps/openmw/mwmechanics/spellcasting.cpp
@@ -329,7 +329,7 @@ namespace MWMechanics
     {
     }
 
-    void CastSpell::launchMagicBolt (const ESM::EffectList& effects)
+    void CastSpell::launchMagicBolt ()
     {        
         osg::Vec3f fallbackDirection (0,1,0);     
 
@@ -340,8 +340,7 @@ namespace MWMechanics
                 osg::Vec3f(mTarget.getRefData().getPosition().asVec3())-
                 osg::Vec3f(mCaster.getRefData().getPosition().asVec3());
             
-        MWBase::Environment::get().getWorld()->launchMagicBolt(mId, false, effects,
-                                                   mCaster, mSourceName, fallbackDirection);
+        MWBase::Environment::get().getWorld()->launchMagicBolt(mId, mCaster, fallbackDirection);
     }
 
     void CastSpell::inflict(const MWWorld::Ptr &target, const MWWorld::Ptr &caster,
@@ -823,7 +822,7 @@ namespace MWMechanics
             inflict(mTarget, mCaster, enchantment->mEffects, ESM::RT_Touch);
 
         if (launchProjectile)
-            launchMagicBolt(enchantment->mEffects);
+            launchMagicBolt();
         else if (isProjectile || !mTarget.isEmpty())
             inflict(mTarget, mCaster, enchantment->mEffects, ESM::RT_Target);
 
@@ -915,7 +914,7 @@ namespace MWMechanics
         if (!mTarget.isEmpty())
             inflict(mTarget, mCaster, spell->mEffects, ESM::RT_Touch);
 
-        launchMagicBolt(spell->mEffects);
+        launchMagicBolt();
 
         return true;
     }
diff --git a/apps/openmw/mwmechanics/spellcasting.hpp b/apps/openmw/mwmechanics/spellcasting.hpp
index 9991c583d..2e368afcf 100644
--- a/apps/openmw/mwmechanics/spellcasting.hpp
+++ b/apps/openmw/mwmechanics/spellcasting.hpp
@@ -106,7 +106,7 @@ namespace MWMechanics
         void playSpellCastingEffects(const std::string &spellid);
 
         /// Launch a bolt with the given effects.
-        void launchMagicBolt (const ESM::EffectList& effects);
+        void launchMagicBolt ();
 
         /// @note \a target can be any type of object, not just actors.
         /// @note \a caster can be any type of object, or even an empty object.
diff --git a/apps/openmw/mwworld/projectilemanager.cpp b/apps/openmw/mwworld/projectilemanager.cpp
index 5b15583bf..ede8c34c4 100644
--- a/apps/openmw/mwworld/projectilemanager.cpp
+++ b/apps/openmw/mwworld/projectilemanager.cpp
@@ -1,6 +1,7 @@
 #include "projectilemanager.hpp"
 
 #include <iomanip>
+#include <iostream>
 
 #include <osg/PositionAttitudeTransform>
 
@@ -41,13 +42,29 @@
 
 namespace
 {
-    ESM::EffectList getMagicBoltData(std::vector<std::string>& projectileIDs, std::vector<std::string>& sounds, float& speed, std::string& texture, const ESM::EffectList& effects)
+    ESM::EffectList getMagicBoltData(std::vector<std::string>& projectileIDs, std::vector<std::string>& sounds, float& speed, std::string& texture, std::string& sourceName, const std::string& id)
     {
+        const MWWorld::ESMStore& esmStore = MWBase::Environment::get().getWorld()->getStore();
+        const ESM::EffectList* effects;
+        if (const ESM::Spell* spell = esmStore.get<ESM::Spell>().search(id)) // check if it's a spell
+        {
+            sourceName = spell->mName;
+            effects = &spell->mEffects;
+        }
+        else // check if it's an enchanted item
+        {
+            MWWorld::ManualRef ref(esmStore, id);
+            MWWorld::Ptr ptr = ref.getPtr();
+            const ESM::Enchantment* ench = esmStore.get<ESM::Enchantment>().find(ptr.getClass().getEnchantment(ptr));
+            sourceName = ptr.getClass().getName(ptr);
+            effects = &ench->mEffects;
+        }
+
         int count = 0;
         speed = 0.0f;
         ESM::EffectList projectileEffects;
-        for (std::vector<ESM::ENAMstruct>::const_iterator iter (effects.mList.begin());
-            iter!=effects.mList.end(); ++iter)
+        for (std::vector<ESM::ENAMstruct>::const_iterator iter (effects->mList.begin());
+            iter!=effects->mList.end(); ++iter)
         {
             const ESM::MagicEffect *magicEffect = MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find (
                 iter->mEffectID);
@@ -82,14 +99,14 @@ namespace
         if (projectileEffects.mList.size() == 1) 
         {
             const ESM::MagicEffect *magicEffect = MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find (
-                effects.mList.begin()->mEffectID);
+                effects->mList.begin()->mEffectID);
             texture = magicEffect->mParticle;
         }
         
         if (projectileEffects.mList.size() > 1) // insert a VFX_Multiple projectile if there are multiple projectile effects
         {
             std::ostringstream ID;
-            ID << "VFX_Multiple" << effects.mList.size();
+            ID << "VFX_Multiple" << effects->mList.size();
             std::vector<std::string>::iterator it;
             it = projectileIDs.begin();
             it = projectileIDs.insert(it, ID.str());
@@ -132,6 +149,7 @@ namespace MWWorld
         , mResourceSystem(resourceSystem)
         , mRendering(rendering)
         , mPhysics(physics)
+        , mCleanupTimer(0.0f)
     {
 
     }
@@ -235,8 +253,7 @@ namespace MWWorld
         state.mEffectAnimationTime->addTime(duration);
     }
 
-    void ProjectileManager::launchMagicBolt(const std::string &spellId, bool stack, const ESM::EffectList &effects, const Ptr &caster,
-                                             const std::string &sourceName, const osg::Vec3f& fallbackDirection)
+    void ProjectileManager::launchMagicBolt(const std::string &spellId, const Ptr &caster, const osg::Vec3f& fallbackDirection)
     {
         osg::Vec3f pos = caster.getRefData().getPosition().asVec3();
         if (caster.getClass().isActor())
@@ -257,18 +274,16 @@ namespace MWWorld
             orient.makeRotate(osg::Vec3f(0,1,0), osg::Vec3f(fallbackDirection));
 
         MagicBoltState state;
-        state.mSourceName = sourceName;
         state.mSpellId = spellId;
         state.mCasterHandle = caster;
         if (caster.getClass().isActor())
             state.mActorId = caster.getClass().getCreatureStats(caster).getActorId();
         else
             state.mActorId = -1;
-        state.mStack = stack;
 
         std::string texture = "";
 
-        state.mEffects = getMagicBoltData(state.mIdMagic, state.mSoundIds, state.mSpeed, texture, effects);
+        state.mEffects = getMagicBoltData(state.mIdMagic, state.mSoundIds, state.mSpeed, texture, state.mSourceName, state.mSpellId);
 
         // Non-projectile should have been removed by getMagicBoltData
         if (state.mEffects.mList.empty())
@@ -277,7 +292,7 @@ namespace MWWorld
         MWWorld::ManualRef ref(MWBase::Environment::get().getWorld()->getStore(), state.mIdMagic.at(0));
         MWWorld::Ptr ptr = ref.getPtr();
 
-        osg::Vec4 lightDiffuseColor = getMagicBoltLightDiffuseColor(effects);
+        osg::Vec4 lightDiffuseColor = getMagicBoltLightDiffuseColor(state.mEffects);
         createModel(state, ptr.getClass().getModel(ptr), pos, orient, true, true, lightDiffuseColor, texture);
 
         MWBase::SoundManager *sndMgr = MWBase::Environment::get().getSoundManager();
@@ -312,10 +327,49 @@ namespace MWWorld
 
     void ProjectileManager::update(float dt)
     {
+        periodicCleanup(dt);
         moveProjectiles(dt);
         moveMagicBolts(dt);
     }
 
+    void ProjectileManager::periodicCleanup(float dt)
+    {
+        mCleanupTimer -= dt;
+        if (mCleanupTimer <= 0.0f)
+        {
+            mCleanupTimer = 2.0f;
+
+            auto isCleanable = [](const ProjectileManager::State& state) -> bool
+            {
+                const float farawayThreshold = 72000.0f;
+                osg::Vec3 playerPos = MWMechanics::getPlayer().getRefData().getPosition().asVec3();
+                return (state.mNode->getPosition() - playerPos).length2() >= farawayThreshold*farawayThreshold;
+            };
+
+            for (std::vector<ProjectileState>::iterator it = mProjectiles.begin(); it != mProjectiles.end();)
+            {
+                if (isCleanable(*it))
+                {
+                    cleanupProjectile(*it);
+                    it = mProjectiles.erase(it);
+                }
+                else
+                    ++it;
+            }
+
+            for (std::vector<MagicBoltState>::iterator it = mMagicBolts.begin(); it != mMagicBolts.end();)
+            {
+                if (isCleanable(*it))
+                {
+                    cleanupMagicBolt(*it);
+                    it = mMagicBolts.erase(it);
+                }
+                else
+                    ++it;
+            }
+        }
+    }
+
     void ProjectileManager::moveMagicBolts(float duration)
     {
         for (std::vector<MagicBoltState>::iterator it = mMagicBolts.begin(); it != mMagicBolts.end();)
@@ -364,7 +418,7 @@ namespace MWWorld
                     cast.mHitPosition = pos;
                     cast.mId = it->mSpellId;
                     cast.mSourceName = it->mSourceName;
-                    cast.mStack = it->mStack;
+                    cast.mStack = false;
                     cast.inflict(result.mHitObject, caster, it->mEffects, ESM::RT_Target, false, true);
                 }
             }
@@ -454,20 +508,30 @@ namespace MWWorld
         }
     }
 
+    void ProjectileManager::cleanupProjectile(ProjectileManager::ProjectileState& state)
+    {
+        mParent->removeChild(state.mNode);
+    }
+
+    void ProjectileManager::cleanupMagicBolt(ProjectileManager::MagicBoltState& state)
+    {
+        mParent->removeChild(state.mNode);
+        for (size_t soundIter = 0; soundIter != state.mSounds.size(); soundIter++)
+        {
+            MWBase::Environment::get().getSoundManager()->stopSound(state.mSounds.at(soundIter));
+        }
+    }
+
     void ProjectileManager::clear()
     {
         for (std::vector<ProjectileState>::iterator it = mProjectiles.begin(); it != mProjectiles.end(); ++it)
         {
-            mParent->removeChild(it->mNode);
+            cleanupProjectile(*it);
         }
         mProjectiles.clear();
         for (std::vector<MagicBoltState>::iterator it = mMagicBolts.begin(); it != mMagicBolts.end(); ++it)
         {
-            mParent->removeChild(it->mNode);
-            for (size_t soundIter = 0; soundIter != it->mSounds.size(); soundIter++)
-            {
-                MWBase::Environment::get().getSoundManager()->stopSound(it->mSounds.at(soundIter));
-            }
+            cleanupMagicBolt(*it);
         }
         mMagicBolts.clear();
     }
@@ -504,11 +568,7 @@ namespace MWWorld
             state.mActorId = it->mActorId;
 
             state.mSpellId = it->mSpellId;
-            state.mEffects = it->mEffects;
-            state.mSound = it->mSoundIds.at(0);
-            state.mSourceName = it->mSourceName;
             state.mSpeed = it->mSpeed;
-            state.mStack = it->mStack;
 
             state.save(writer);
 
@@ -553,13 +613,21 @@ namespace MWWorld
             esm.load(reader);
 
             MagicBoltState state;
-            state.mSourceName = esm.mSourceName;
             state.mIdMagic.push_back(esm.mId);
             state.mSpellId = esm.mSpellId;
             state.mActorId = esm.mActorId;
-            state.mStack = esm.mStack;
             std::string texture = "";
-            state.mEffects = getMagicBoltData(state.mIdMagic, state.mSoundIds, state.mSpeed, texture, esm.mEffects);
+
+            try
+            {
+                state.mEffects = getMagicBoltData(state.mIdMagic, state.mSoundIds, state.mSpeed, texture, state.mSourceName, state.mSpellId);
+            }
+            catch(...)
+            {
+                std::cerr << "Warning: Failed to recreate magic projectile from saved data (id \"" << state.mSpellId << "\" no longer exists?)" << std::endl;
+                return true;
+            }
+
             state.mSpeed = esm.mSpeed; // speed is derived from non-projectile effects as well as
                                        // projectile effects, so we can't calculate it from the save
                                        // file's effect list, which is already trimmed of non-projectile
@@ -577,7 +645,7 @@ namespace MWWorld
                 return true;
             }
 
-            osg::Vec4 lightDiffuseColor = getMagicBoltLightDiffuseColor(esm.mEffects);
+            osg::Vec4 lightDiffuseColor = getMagicBoltLightDiffuseColor(state.mEffects);
             createModel(state, model, osg::Vec3f(esm.mPosition), osg::Quat(esm.mOrientation), true, true, lightDiffuseColor, texture);
 
             MWBase::SoundManager *sndMgr = MWBase::Environment::get().getSoundManager();
diff --git a/apps/openmw/mwworld/projectilemanager.hpp b/apps/openmw/mwworld/projectilemanager.hpp
index c7025a3a0..0dfbf6080 100644
--- a/apps/openmw/mwworld/projectilemanager.hpp
+++ b/apps/openmw/mwworld/projectilemanager.hpp
@@ -49,8 +49,7 @@ namespace MWWorld
                 MWRender::RenderingManager* rendering, MWPhysics::PhysicsSystem* physics);
 
         /// If caster is an actor, the actor's facing orientation is used. Otherwise fallbackDirection is used.
-        void launchMagicBolt (const std::string &spellId, bool stack, const ESM::EffectList& effects,
-                              const MWWorld::Ptr& caster, const std::string& sourceName, const osg::Vec3f& fallbackDirection);
+        void launchMagicBolt (const std::string &spellId, const MWWorld::Ptr& caster, const osg::Vec3f& fallbackDirection);
 
         void launchProjectile (MWWorld::Ptr actor, MWWorld::ConstPtr projectile,
                                        const osg::Vec3f& pos, const osg::Quat& orient, MWWorld::Ptr bow, float speed, float attackStrength);
@@ -69,6 +68,7 @@ namespace MWWorld
         Resource::ResourceSystem* mResourceSystem;
         MWRender::RenderingManager* mRendering;
         MWPhysics::PhysicsSystem* mPhysics;
+        float mCleanupTimer;
 
         struct State
         {
@@ -101,8 +101,6 @@ namespace MWWorld
 
             float mSpeed;
 
-            bool mStack;
-
             std::vector<MWBase::Sound*> mSounds;
             std::vector<std::string> mSoundIds;
         };
@@ -119,6 +117,10 @@ namespace MWWorld
         std::vector<MagicBoltState> mMagicBolts;
         std::vector<ProjectileState> mProjectiles;
 
+        void cleanupProjectile(ProjectileState& state);
+        void cleanupMagicBolt(MagicBoltState& state);
+        void periodicCleanup(float dt);
+
         void moveProjectiles(float dt);
         void moveMagicBolts(float dt);
 
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index a9506385d..40bc13c94 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -2816,10 +2816,9 @@ namespace MWWorld
         mProjectileManager->launchProjectile(actor, projectile, worldPos, orient, bow, speed, attackStrength);
     }
 
-    void World::launchMagicBolt (const std::string &spellId, bool stack, const ESM::EffectList& effects,
-                                 const MWWorld::Ptr& caster, const std::string& sourceName, const osg::Vec3f& fallbackDirection)
+    void World::launchMagicBolt (const std::string &spellId, const MWWorld::Ptr& caster, const osg::Vec3f& fallbackDirection)
     {
-        mProjectileManager->launchMagicBolt(spellId, stack, effects, caster, sourceName, fallbackDirection);
+        mProjectileManager->launchMagicBolt(spellId, caster, fallbackDirection);
     }
 
     const std::vector<std::string>& World::getContentFiles() const
diff --git a/apps/openmw/mwworld/worldimp.hpp b/apps/openmw/mwworld/worldimp.hpp
index a15dcaf3d..774753b6c 100644
--- a/apps/openmw/mwworld/worldimp.hpp
+++ b/apps/openmw/mwworld/worldimp.hpp
@@ -601,8 +601,7 @@ namespace MWWorld
              */
             virtual void castSpell (const MWWorld::Ptr& actor);
 
-            virtual void launchMagicBolt (const std::string& spellId, bool stack, const ESM::EffectList& effects,
-                                          const MWWorld::Ptr& caster, const std::string& sourceName, const osg::Vec3f& fallbackDirection);
+            virtual void launchMagicBolt (const std::string& spellId, const MWWorld::Ptr& caster, const osg::Vec3f& fallbackDirection) override;
             virtual void launchProjectile (MWWorld::Ptr actor, MWWorld::ConstPtr projectile,
                                            const osg::Vec3f& worldPos, const osg::Quat& orient, MWWorld::Ptr bow, float speed, float attackStrength);
 
diff --git a/components/esm/projectilestate.cpp b/components/esm/projectilestate.cpp
index 70ae4c5ee..8ade9d5b2 100644
--- a/components/esm/projectilestate.cpp
+++ b/components/esm/projectilestate.cpp
@@ -27,11 +27,7 @@ namespace ESM
         BaseProjectileState::save(esm);
 
         esm.writeHNString ("SPEL", mSpellId);
-        esm.writeHNString ("SRCN", mSourceName);
-        mEffects.save(esm);
         esm.writeHNT ("SPED", mSpeed);
-        esm.writeHNT ("STCK", mStack);
-        esm.writeHNString ("SOUN", mSound);
     }
 
     void MagicBoltState::load(ESMReader &esm)
@@ -39,11 +35,14 @@ namespace ESM
         BaseProjectileState::load(esm);
 
         mSpellId = esm.getHNString("SPEL");
-        mSourceName = esm.getHNString ("SRCN");
-        mEffects.load(esm);
+        if (esm.isNextSub("SRCN")) // for backwards compatibility
+            esm.skipHSub();
+        ESM::EffectList().load(esm); // for backwards compatibility
         esm.getHNT (mSpeed, "SPED");
-        esm.getHNT (mStack, "STCK");
-        mSound = esm.getHNString ("SOUN");
+        if (esm.isNextSub("STCK")) // for backwards compatibility
+            esm.skipHSub();
+        if (esm.isNextSub("SOUN")) // for backwards compatibility
+            esm.skipHSub();
     }
 
     void ProjectileState::save(ESMWriter &esm) const
diff --git a/components/esm/projectilestate.hpp b/components/esm/projectilestate.hpp
index 3471fbfc7..67ec89bb6 100644
--- a/components/esm/projectilestate.hpp
+++ b/components/esm/projectilestate.hpp
@@ -31,11 +31,7 @@ namespace ESM
     struct MagicBoltState : public BaseProjectileState
     {
         std::string mSpellId;
-        std::string mSourceName;
-        ESM::EffectList mEffects;
         float mSpeed;
-        bool mStack;
-        std::string mSound;
 
         void load (ESMReader &esm);
         void save (ESMWriter &esm) const;