We may earn a commission when you buy through links in our articles. Learn more.

Roguelike FPS Polygod is free if you have certain The Binding of Isaac achievements


Polygod is a roguelike FPS with a low-poly visual style and randomly-generated bullet-hell arenas. It’s in Steam Early Access right now, and you can get a free code for the game if you’re really good at The Binding of Isaac. 

Check out our list of the best indie games for more small studio goodness. 

Developers Amplify Games believe Polgod appeals to the same audience as The Binding of Isaac, so hence the free codes for that game’s most hardcore fans.

“I really loved The Binding of Isaac and I think Polygod will resonate well with players that also really enjoyed The Binding of Isaac,” said Amplify Games co-founder Dominic Obojkovits, via Eurogamer. “Because of this, I want to reward the most dedicated players with a copy of Polygod.”

To claim an Early Access code for Polygod, you need to have completed one of the following achievements in The Binding of Isaac, then send a message to Steam account ‘Atomicdomb’ from whichever Steam account unlocked the achievement:

  • Hard Game
  • Eternal Satan
  • Eternal Cain
  • Eternal Isaac
  • Eternal ???
  • Eternal Maggy
  • Eternal Eve
  • Eternal Samson
  • Eternal Judas
  • Eternal God
  • Eternal Personalities

If that sounds like too much effort, Polygod is $8.99 on Steam.