Whenever I make a new world it starts with the gamerule "keepInventory" set to true. I cannot change this at all, I want it to be false. I have tried using the /gamerule keepInventory false command and I have tried to change it from the level.dat file, it does not work. Please help! (If you know which mod is causing this please say so.)
I know this is an old ass post but the mod is Rival Rebels. I'm having the same problem, the mod is so good though that I want to keep the mod and set /gamerule keepinventory false but obviously I can't find a way also, that is how I stumbled upon your post.
Edit.
I think I found it, the /gamerule command is actually a vanilla minecraft command. Rival Rebels just sets it to true. to set it to false you need to be in creative and you need to type: /gamerule keepInventory false with a capital "I" in Inventory.
I'm sure this will help you; 2 and a half years since you posted this!
Whenever I make a new world it starts with the gamerule "keepInventory" set to true. I cannot change this at all, I want it to be false. I have tried using the /gamerule keepInventory false command and I have tried to change it from the level.dat file, it does not work. Please help! (If you know which mod is causing this please say so.)
The mods list (active mods):
ABO-MC1.7.10-BC7-release3.0.1
additionalpipes-4.5.2-hotfix1
generators-0.9.14.89-mc1.7.10
ae2stuff-0.4.0.38-mc1.7.10
AnimationAPI-1.7.10-1.2.4
AOBD-2.6.3
AppleCore-mc1.7.10-1.1.0
appliedenergistics2-rv2-stable-9
ArchimedesShips-1.7.1
[1.7.10]ArmorStatusHUD-client-1.28
Aroma1997Core-1.7.10-1.0.2.14
Aroma1997s-Dimensional-World-1.7.10-1.1.0.1
AromaBackup-1.7.10-0.0.0.5
1.7.10_AM2-1.4.0.008
Artifice-1.7.10-1.1.5R-396
AsieLib-1.7.10-0.4.2
Automagy-1.7.10-0.26
bdlib-1.9.0.94-mc1.7.10
BiblioCraft[v1.10.4][MC1.7.10]
BiblioWoods[BiomesOPlenty][v1.9]
BiblioWoods[Forestry][v1.7]
BiblioWoods[Natura][v1.5]
BigReactors-0.4.3A
binnie-mods-2.0-pre12
BiomesOPlenty-1.7.10-2.1.0.1364-universal
BloodArsenal-1.7.10-1.1-14
BloodMagic-1.7.10-1.3.3-4
Botania r1.6-194
buildcraft-7.0.13
BuildcraftAdditions-1.7.10-2.2.0
Calculator-1.7.10-1.7.4
Carpenter's Blocks v3.3.7 DEV - MC 1.7.10
ChickenChunks-1.7.10-1.3.4.19-universal
Chisel2-2.4.0.38
ChiselFacades-1.7.10-2.11-cricket
ChiselTones-1.7.10-1.0-1
chocolateQuest-1.7.10-1.0
CodeChickenCore-1.7.10-1.0.7.46-universal
CoFHCore-[1.7.10]3.0.3B2-294
ComputerCraft1.73
Computronics-1.7.10-1.5.4
CosmeticArmor-1.7.10-1.0.5.B8-universal
CraftHeraldry 1.1.3
[1.7.10]DamageIndicatorsMod-3.2.3
dark_menagerie-1.7.10-beta-3.1a
Decocraft-2.0.2_1.7.10
denseores-1.6.2
Draconic-Evolution-1.7.10-1.0.1c
DragonMounts-r41-1.7.10
DynamicLights-1.7.10
EasyCrafting-1.7.10-2.0.1.16
ElectricalAge_BETA-1.10_r50
EnchantingPlus-1.7.10-3.0.2-d
Enchiridion 2-1.7.10-2.0.2a
EnderIO-1.7.10-2.2.8.381
EnderZoo-1.7.10-1.0.11.28
EnderCore-1.7.10-0.0.1.4_alpha
EnderStorage-1.7.10-1.4.7.36-universal
EnderTech-1.7.10-0.3.2.388
EnhancedPortals_1.7.10-universal-3.0.12
Eureka-1.7.10-3.0.2
INpureCore-[1.7.10]1.0.0B9-62
ExtraCells-1.7.10-2.2.73b129
extrautilities-1.2.6
ExtraTiC-1.7.10-1.4.5
Factorization-1.7.10-0.8.95(2)
fastcraft-1.21
Flaxbeard'sSteamPower-1.7.10-0.28.7
Forbidden Magic-1.7.10-0.562
forestry_1.7.10-3.5.7.16
Fossils_Archeology_Revival-1.7.10_Build-7.2
funky-locomotion-1.7.10-beta-5c
GalacticraftCore-1.7-3.0.12.345
Galacticraft-Planets-1.7-3.0.12.345
Ganys Surface-1.11.1
gendustry-1.4.13.97-mc1.7.10
GravityGun-4.0.0-beta
GregsLighting-1.11.2-mc1.7.10
Guide-API-1.7.10-1.0.1-20
HardcoreEnderExpansion MC-1.7.10 v1.8.1
Hats-4.0.1
Headcrumbs-1.5.4
HydCraft-1.7.10-2.0.87-universal
iChunUtil-4.2.2
immibis-core-59.1.1
immibis-microblocks-59.1.0
immibis-peripherals-59.0.2
InfernalMobs-1.7.10
IGW-Mod-1.7.10-1.1.3-18-universal
InventoryTweaks-1.58-147
ironchest-1.7.10-6.0.62.742-universal
IvToolkit-1.2
Jabba-1.2.1a_1.7.10
journeymap-1.7.10-5.1.0-unlimited
k4lib-1.7.10-0.1.46-universal
LunatriusCore-1.7.10-1.1.2.21-universal
ModularPowersuits-0.11.0.181
magicbees-1.7.10-2.3.1
Magistics-1.7.10-0.7.6
malisisdoors-1.7.10-1.8.2
malisiscore-1.7.10-0.12.3
Mantle-1.7.10-0.3.2
Mariculture-Deluxe-1.7.10-1.2.4.2a
Mekanism-1.7.10-8.1.5.246
MekanismGenerators-1.7.10-8.1.5.246
MekanismTools-1.7.10-8.1.5.246
Metallurgy-1.7.10-4.0.8.97
MetallurgyCore-1.7.10-4.0.4.18
MicdoodleCore-1.7-3.0.12.345
1.7.10-MB_Battlegear2-Bullseye-1.0.8.0
Minechem-1.7.10-5.0.5.399
MineFactoryReloaded-[1.7.10]2.8.0-104
MineMenu-1.7.10-1.2.0.B44-universal
Morph-Beta-0.9.1
natura-1.7.10-2.2.0.1
neiaddons-1.12.10.33-mc1.7.10
NEIIntegration-MC1.7.10-1.0.9
NetherOres-[1.7.10]2.3.0-12
NotEnoughResources-1.7.10-0.1.0.101
NotEnoughItems-1.7.10-1.0.5.111-universal
NotEnoughKeys-1.7.10-1.0.0b29
Numina-0.4.0.101
OpenModularTurrets-1.7.10-2.0.1-137
OpenBlocks-1.7.10-1.4.3
OpenComputers-MC1.7.10-1.5.13.28-universal
OpenEye-0.6-1.7.10
OpenModsLib-1.7.10-0.7.3
OpenPeripheral-1.7.10-AIO-4
OptiFine_1.7.10_HD_U_C1
OreDictionaryConverter-1.6.1
PneumaticCraft-1.7.10-1.9.0-85-universal
PortalGun-4.0.0-beta-5
PortalGunSounds
PowerConverters-1.7.10_3.3.0-jenkins.74
practicalities-1.7.10-0.6.2
primitivemobs-1.0c-1.7.10
ProjectBlue-1.1.4-mc1.7.10
ProjectE-1.7.10-PE1.7.1
ProjectRed-1.7.10-4.7.0pre2.87-Base
ProjectRed-1.7.10-4.7.0pre2.87-Compat
ProjectRed-1.7.10-4.7.0pre2.87-Mechanical_beta
ProjectRed-1.7.10-4.7.0pre2.87-World
ProjectRed-1.7.10-4.7.0pre2.87-Lighting
ProjectRed-1.7.10-4.7.0pre2.87-Integration
Railcraft_1.7.10-9.6.1.0
RandomThings-2.2.4
RecurrentComplex-0.9.6.2
RedstoneArmory-1.7.10-1.2.0-37
RedstoneArsenal-[1.7.10]1.1.1B1-85
RedstonePasteMod-1.7.10-1.6.2
RefinedRelocation-1.7.10-1.0.8b
Reliquary-1.2
rftools-3.11beta1
rivalrebels-1.7.10J
roguelike-1.7.10-1.3.6.3
RouterReborn-1.2.0.21-universal
Sanguimancy-1.7.10-1.1.9-31
Shatter-Mod-1.7.10
slick-util
SSR-rc3
SpecialMobs-1.7.10-3.1.1
Stackie-1.7.10-1.6.0.35-universal
[1.7.10]StatusEffectHUD-client-1.27
StevesCarts2.0.0.b18
StevesFactoryManagerA93
StevesWorkshop-0.5.1
StevesAddons-1.7.10-0.10.13
tcnodetracker-1.7.10-1.1.1
Technomancy - 0.11.1 - 1.7.10
Thaumcraft-1.7.10-4.2.3.5
thaumcraftneiplugin-1.7.10-1.7a
thaumicenergistics-0.8.10.5
ThaumicTinkerer-2.5-1.7.10-164
orespawn-1.7.10-20.3
twilightforest-1.7.10-2.3.7
ThermalDynamics-[1.7.10]1.1.0B2-149
ThermalExpansion-[1.7.10]4.0.2B2-210
ThermalFoundation-[1.7.10]1.2.0B1-95
ThermalRecycling-1.7.10-0.4.2.5
ThermalSmeltery-1.7.10-1.2.1
TiCTooltips-mc1.7.10-1.2.4
TConstruct-1.7.10-1.8.5
TMechworks-1.7.10-0.2.14.100
Translocator-1.7.10-1.1.2.15-universal
[1.7.10]Treecapitator-universal-2.0.4
ttCore-MC1.7.10-0.1.1-78
resonant-engine-3.0.0.255-core
Waila-1.5.10_1.7.10
WailaHarvestability-mc1.7.x-1.1.2
WAILAPlugins-MC1.7.10-0.0.1-15
Wawla-1.3.1-1.7.10
witchery-1.7.10-0.24.1
WR-CBE-1.7.10-1.4.1.9-universal
Ztones-1.7.10-2.2.1
I know this is an old ass post but the mod is Rival Rebels. I'm having the same problem, the mod is so good though that I want to keep the mod and set /gamerule keepinventory false but obviously I can't find a way also, that is how I stumbled upon your post.
Edit.
I think I found it, the /gamerule command is actually a vanilla minecraft command. Rival Rebels just sets it to true. to set it to false you need to be in creative and you need to type: /gamerule keepInventory false with a capital "I" in Inventory.
I'm sure this will help you; 2 and a half years since you posted this!