Being determined to make a Halloween 🎃 papercraft this year, I started this one (very 😉) early.
It's obviously the Horned Reaper, from Dungeon Keeper 2! 😈
...or actually, it's the official Quake 3 Arena skin that Bullfrog (the studio that created Dungeon Keeper and the Horned Reaper) made. On an archived version of the Bullfrog website, you can actually still download the skin using the "(Europe)" download link: archived Bullfrog website.
But if that link doesn't work for you and you still want the Q3A Horned Reaper skin, it's still on many Quake 3 Arena fansites. 😉
Even with a gap of three years, I made quite a few Halloween papercrafts already:
I hope you like them, have a spooky Halloween! 👻