Game Library
Every game mods differently.
Some games take a text file. Others need a full game engine on your PC. Find your game to see what its mods are made of, which free tools you need and where players get mods.
No games match that search. Try an engine name like "Unreal" or "Unity", or see the tips below.
Don't see your game?
Good signOfficial tools or a Workshop
Search "game name SDK", "editor" or "modding". A Steam Workshop tab, mod.io, Thunderstore or a busy Nexus Mods page means the game is mod-friendly.
TipFind the engine
Most games are built on Unreal or Unity. Once you know which, the matching section above tells you roughly how its mods work.
StopCompetitive online games
Games like Valorant, Fortnite or Call of Duty use anti-cheat that bans modified clients. Don't mod them, even cosmetically.
CheckRead the rules first
Each game's terms decide what you may share. The Modsmith Guide covers what to look for.