Games like Project Jeff
Games like Project Jeff include Vampire Survivors, The Binding of Isaac: Rebirth, Skul: The Hero Slayer, Sephiria, and Dungreed. We matched them by the tags players give Project Jeff on Steam (Roguelite, Pixel Graphics, Singleplayer, Roguelike, and Inventory Management): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Roguelite · Pixel Graphics · Action Roguelike

The Binding of Isaac: Rebirth
Shared: Roguelike · Pixel Graphics · Action Roguelike

Skul: The Hero Slayer
Shared: Pixel Graphics · Roguelite · Roguelike

Sephiria
Shared: Roguelite · Roguelike · Pixel Graphics

Dungreed
Shared: Pixel Graphics · Roguelite · Roguelike

Noita
Shared: Pixel Graphics · Roguelike · Dungeon Crawler

Hades
Shared: Roguelite · Action Roguelike · Roguelike

Dead Cells
Shared: Roguelike · Pixel Graphics · Roguelite

Enter the Gungeon
Shared: Pixel Graphics · Roguelike · Action Roguelike

Megabonk
Shared: Roguelite · Roguelike · Action Roguelike

UnderMine
Shared: Roguelite · Pixel Graphics · Dungeon Crawler

Wizard of Legend
Shared: Pixel Graphics · Roguelike · Dungeon Crawler

Balatro
Shared: Roguelike · Singleplayer · Pixel Graphics

Moonlighter
Shared: Pixel Graphics · Roguelite · Roguelike

Rogue Legacy
Shared: Roguelike · Singleplayer · Roguelite

Cult of the Lamb
Shared: Singleplayer · Roguelite · Action Roguelike

Halls of Torment
Shared: Roguelite · Pixel Graphics · Roguelike

Death Must Die
Shared: Roguelite · Pixel Graphics · Action Roguelike

Hades II
Shared: Roguelite · Roguelike · Dungeon Crawler

Risk of Rain (2013)
Shared: Roguelike · Pixel Graphics · Action Roguelike

Children of Morta
Shared: Pixel Graphics · Roguelike · Roguelite

Nuclear Throne
Shared: Pixel Graphics · Roguelike · Roguelite

Darkest Dungeon® II
Shared: Roguelite · Singleplayer · Dungeon Crawler

Peglin
Shared: Roguelite · Roguelike · Pixel Graphics

