Change line #39 to
int num = ParentObject.HasStat("Level") ? ParentObject.Stat("Level") / 5 - E.Tier : 1;

and it will WAI

Thanks for trying to update, but I can confirm with Antitrust that this isn't working as intended, and it especially falls apart at level 20+. Tested on a level 20 character. Electric Snail (Level 16) gave 200 XP without the mod, and 50 XP with. Chain Laser Turret (Level 25) gave 500+ vs. 58 xp without/with.

Thanks for updating this mod!

There seems to be an issue with higher levels where it only ever provides 6.25%. Tested by killing a Tongue Tyrant at level 33 (same level they are) and only got 51xp instead of 825.

Looking at the code, I think it's because it's not subtracting the target's tier from the actor's tier? So it's just purely actor's tier right now, instead of difference between actor's and target's tier? Maybe.

Thanks, this one actually works unlike the other one i tried on the 'top of all time' page