More Unit Levels

Increases the possible levels of units and heroes to 25 (instead of 15).

Stronger Antagonists

Adds more "progression" upgrades to each antagonist, which makes them stronger. (DLCs 1 & 2 required)

Research Anything

Removes the RNG from research. Freely choose what you want to research from the pages you own. You still need to find new spell pages.

Level up choices

This is the example mod from the steam modding guide.

5 expansion slots for all rooms(Complete supplement and bug fixes)

Full room 5 expansion slots

4 ingredient slots open at start

Opens all 4 ingredient slots for all crafts at start

All antagonists

You can play against all 9 circle mages.

Demons - No Red Screen

Removes the red effect around your tower, turning everything red-ish, when having cast the "Pandemonium" spell (DLC). Replaces the Demonlord location visuals with a sullied village so the red screen effect also doesn't appear.