Games like Hat'venture
Games like Hat'venture include Vampire Survivors, Skul: The Hero Slayer, BALL x PIT, Dead Cells, and UnderMine. We matched them by the tags players give Hat'venture on Steam (Action, Action Roguelike, Roguelite, Shoot 'Em Up, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Action Roguelike · Roguelite

BALL x PIT
Shared: Action · Roguelite · Action Roguelike

Dead Cells
Shared: Action Roguelike · Roguelite · 2D

UnderMine
Shared: Action Roguelike · Roguelite · Action

Death Must Die
Shared: Action Roguelike · Roguelite · Action

Talented
Shared: Action Roguelike · Roguelite · Shoot 'Em Up

Hades
Shared: Action Roguelike · Roguelite · Action

Dungreed
Shared: Action Roguelike · Action · Roguelite

Star of Providence
Shared: Roguelite · Action Roguelike · Shoot 'Em Up

Megabonk
Shared: Action Roguelike · Roguelite · Action

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Shoot 'Em Up

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

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

Rogue Legacy
Shared: Action Roguelike · Action · Singleplayer

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · 2D

Sephiria
Shared: Action Roguelike · Roguelite · Action

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

HUNTDOWN: OVERTIME
Shared: Action Roguelike · Action · Shoot 'Em Up

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Roguelite · Action

Have a Nice Death
Shared: Action Roguelike · Action · Singleplayer

Rocket Rats
Shared: Action Roguelike · Roguelite · Pixel Graphics

Streets of Rogue
Shared: Action Roguelike · Roguelite · Action