1-) Run Rimworld;
2-) Press the “Options” button in the main menu;
3-) Under Gameplay, the middle column, tick “Development mode”.
Now that Development mode is activated, create a new world and colony and test your mod:
1-) Create world;
2-) Create a colony, probably on Free Build difficulty;
3-) The following icons: can now be found in the top-right;
1-/ Open the debug log = Clicking this opens the debug log;
2-/ Open the package editor = Opens the package editor, which allows you to preview and modify Sounds and Hair;
3-/ Open the view settings = Allows you to activate graphic overlays and cheats like Fast Research;
4-/ Open debug actions menu = This menu allows you to do all sorts of things;
Incidents allows you to spawn in raids or execute incidents;
Actions – Misc contains a few buttons that complete research, continue the in-game tutorial, etcetera;
Tools – General contains explosions and damaging things, snow actions, plant growth and some more advanced AI visualizations;
Tools – Pawns holds tools which alter Pawn appearance, levels, health and jobs;
Tools – Spawning allows you to spawn Pawns, Items in different stack sizes, Terrain and Filth;
Autotests contains some stress tests like spawning in an entire colony in different stages, burning everything and killing lots of pawns at once.
5-/ Open debug logging menu = Contains buttons which log parts of the game in the Debug Log;
6-/ Open the inspector = Gives a lot more information when hovering over things;
7-/ Toggle god mode = Toggles God mode, which allows you to build things without cost;
8-/ Pause the game when an error is logged = Toggles exactly what it says.