[Steam] Devader - 70% off

Devader on Steam

The discount percentage might not seem that great at first sight, but it's a new historical low and the base price isn't high to begin with. Also, it's sold only on Steam and hasn't had any sales for a year.

This game is the definition of a hidden gem, if you like the Twin Stick Shoot 'Em Up / Bullet Hell genre, combined with light Tower Defense elements and a few Roguelite sprinkles. Made by a single developer and unfortunately, largely unknown, it has stylish vision, great soundtrack and incredible enemy variety, some of which are quite creative. Word of warning though, it's hard!

It reminds me of another similarly great SHMUP: Nova Drift, which is also very close to its historical low. Nova Drift is in space and doesn't have a Tower Defense element, while Devader's action is on the ground.