Games like PHOSPHOR
Games like PHOSPHOR include Risk of Rain 2, Anomaly Agent, Megabonk, Skul: The Hero Slayer, and 30XX. We matched them by the tags players give PHOSPHOR on Steam (Action Roguelike, Side Scroller, Looter Shooter, 2D Platformer, and Bullet Heaven): closest matches first, and among equally close ones the better-known games.
Risk of Rain 2
Shared: Action Roguelike · Looter Shooter · Roguelite
Anomaly Agent
Shared: Side Scroller · Action Roguelike · 2D Platformer
Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite
Skul: The Hero Slayer
Shared: Action Roguelike · Roguelite · Side Scroller
30XX
Shared: Action Roguelike · Side Scroller · 2D Platformer
Lost Castle
Shared: Action Roguelike · Side Scroller · Roguelite
20XX
Shared: Action Roguelike · 2D Platformer · Roguelite
Neon Abyss
Shared: Bullet Heaven · Platformer · Roguelike
Portal Dungeon
Shared: Action Roguelike · Side Scroller · Roguelite
Rogue Legacy
Shared: Action Roguelike · Platformer · Roguelike
Dead Cells
Shared: Action Roguelike · Roguelite · Roguelike
Vampire Survivors
Shared: Action Roguelike · Roguelite · 2D
Risk of Rain Returns
Shared: Action Roguelike · Looter Shooter · PvE
Dungreed
Shared: Action Roguelike · Roguelite · Roguelike
Death Must Die
Shared: Action Roguelike · Roguelite · Bullet Heaven
Deadzone: Rogue
Shared: Looter Shooter · Roguelite · PvE
Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Heaven · Roguelite
Gunfire Reborn
Shared: Roguelite · Looter Shooter · Action Roguelike
Blade Assault
Shared: 2D Platformer · Side Scroller · Platformer
Halls of Torment
Shared: Action Roguelike · Roguelite · Bullet Heaven
Crab Champions
Shared: Action Roguelike · Looter Shooter · Roguelike
Rogue: Genesia
Shared: Action Roguelike · Bullet Heaven · Roguelite
Neon Echo
Shared: Action Roguelike · Side Scroller · Roguelite
Roboquest
Shared: Action Roguelike · Roguelite · Looter Shooter