Required mods:
Bagelsmore 2.0.0
MrCrayfish Furniture Mod 4.2.0
Craftymaniacs Build 63B
CreativeCore 1.9.19
CustomNPCs 1.12.2 20Jan18 or newer
DimensionRules 1.12 (MC1.12)
Flan's Mod 5.5.0-1.12.2
JustAFewFish 1.7 for 1.12
MCMultipart 2.5.1
MorePlayerModels 1.12.2 18Jan18 or newer
Nashorn Scripting engine JAR
OnlinePcitureFrame 1.4.16 1.12.2
Optifine 1.12.2 HD UD3
Pokecube AIO 1.7.1
Pokecube Alternative 2.4.0
SimpleDimensions 1.12-1.3.1
Sonar Core 1.12.2-5.0.9
VariedCommodities 1.12.2 06Nov17 or newer
Required Flan's Mod addons:
WW2 Content pack 5.5.2 or newer
Ye Olde Content Pack 5.5.0 for 1.12.2 or newer
Simple Parts 1.12.2-5.5.0 or newer
Modern Warfare 1.12.2-5.5.2 or newer
Instructions:
1. Extract the ZIP at the root of the .minecraft folder
2. Download the required mods
3. Put the required mods in the mods folder.
4. Put the required Flan's content packs in the Flan folder.
5. Apply the "Resources" resource pack, otherwise the Spaceworld Pokemon will be invisible.
6. Boot up Minecraft 1.12.2 and play the world.
7. Enjoy! C: