Games like Rule Seeker
Games like Rule Seeker include Megabonk, The Binding of Isaac: Rebirth, Risk of Rain 2, The Binding of Isaac, and Vampire Survivors. We matched them by the tags players give Rule Seeker on Steam (Indie, Action Roguelike, Strategy, Bullet Hell, and Action): closest matches first, and among equally close ones the better-known games.
Megabonk
Shared: Action Roguelike · Indie · Bullet Hell
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Indie · Replay Value
Risk of Rain 2
Shared: Action Roguelike · Action · Roguelike
The Binding of Isaac
Shared: Action Roguelike · Indie · Replay Value
Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Indie
Brotato
Shared: Action Roguelike · Bullet Hell · Roguelike
Hades
Shared: Action Roguelike · Indie · Action
Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Indie
Nuclear Throne
Shared: Action Roguelike · Indie · Bullet Hell
Gunfire Reborn
Shared: Indie · Roguelike · Action Roguelike
Crab Champions
Shared: Action Roguelike · Looter Shooter · Roguelike
Pass the Fear
Shared: Action Roguelike · Bullet Hell · Strategy
Skul: The Hero Slayer
Shared: Indie · Action Roguelike · Action
20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Survival
Roboquest
Shared: Action Roguelike · Bullet Hell · Indie
Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelike
Dead Estate
Shared: Action Roguelike · Bullet Hell · Roguelike
Atomicrops
Shared: Action · Bullet Hell · Action Roguelike
Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Hell · Action
Death Road to Canada
Shared: Action Roguelike · Indie · Action
Noobs Want to Live
Shared: Bullet Hell · Action Roguelike · Action
Halls of Torment
Shared: Action Roguelike · Bullet Hell · Action
Risk of Rain (2013)
Shared: Action Roguelike · Indie · Action
FTL: Faster Than Light
Shared: Strategy · Indie · Roguelike