So my buddy and I were playing with your mod and we saw the tar pit tile's massive speed reduction. We surrounded one of our outposts with tar pits, thinking it would slow down the biters, but it had no effect. Is there any way you could make the game apply the walking speed buffs and debuffs to the aliens? Maybe make it a toggleable option?

Yeah im not sure how to go about doing that because theres this line of code

walking_speed_modifier =

which can alter the speed of the player but I dont know if theres a mod hook for monster walking speed.