Games like SULFUR
Games like SULFUR include Hades, The Binding of Isaac: Rebirth, Gunfire Reborn, Delta Force, and Hades II. We matched them by the tags players give SULFUR on Steam (Action Roguelike, Extraction Shooter, Gun Customization, FPS, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Hades
Shared: Action Roguelike · Roguelite · Singleplayer
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dungeon Crawler · Singleplayer
Gunfire Reborn
Shared: FPS · Roguelite · Action Roguelike
Delta Force
Shared: Extraction Shooter · FPS · Singleplayer
Hades II
Shared: Action Roguelike · Roguelite · Roguelike
Noita
Shared: Dungeon Crawler · Difficult · Action Roguelike
Enter the Gungeon
Shared: Action Roguelike · Dungeon Crawler · Difficult
Skul: The Hero Slayer
Shared: Action Roguelike · Singleplayer · Roguelite
Vampire Survivors
Shared: Action Roguelike · Roguelite · Singleplayer
The Binding of Isaac
Shared: Action Roguelike · Difficult · Roguelike
Dungreed
Shared: Action Roguelike · Roguelite · Dungeon Crawler
BPM: BULLETS PER MINUTE
Shared: FPS · Action Roguelike · Shooter
Cult of the Lamb
Shared: Action Roguelike · Singleplayer · Dungeon Crawler
UnderMine
Shared: Action Roguelike · Roguelite · Dungeon Crawler
Void Bastards
Shared: Action Roguelike · FPS · Extraction Shooter
Moonlighter
Shared: Action Roguelike · Dungeon Crawler · Roguelite
Dead Cells
Shared: Action Roguelike · Roguelite · Roguelike
Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike
Arena Breakout: Infinite
Shared: Extraction Shooter · FPS · Gun Customization
Heroes of Hammerwatch II
Shared: Action Roguelike · Dungeon Crawler · Action RPG
Ziggurat
Shared: Action Roguelike · FPS · Roguelite
Ready or Not
Shared: FPS · Singleplayer · Shooter
Heavy Bullets
Shared: Action Roguelike · FPS · Roguelite
VOID/BREAKER
Shared: FPS · Gun Customization · Roguelite