Games like Oneiro
Games like Oneiro include Noita, The Binding of Isaac: Rebirth, Darkest Dungeon®, The Binding of Isaac, and PEAK. We matched them by the tags players give Oneiro on Steam (Dungeon Crawler, Perma Death, Physics, Loot, and Exploration): closest matches first, and among equally close ones the better-known games.
Noita
Shared: Physics · Dungeon Crawler · Difficult
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dungeon Crawler · Difficult
Darkest Dungeon®
Shared: Dungeon Crawler · Perma Death · Difficult
The Binding of Isaac
Shared: Action Roguelike · Difficult · Dark
PEAK
Shared: Physics · Exploration · Atmospheric
Hades
Shared: Action Roguelike · Dungeon Crawler · Indie
Enter the Gungeon
Shared: Dungeon Crawler · Action Roguelike · Difficult
Content Warning
Shared: Exploration · Action Roguelike · Physics
Rain World
Shared: Exploration · Atmospheric · Difficult
Megabonk
Shared: Action Roguelike · Loot · Roguelike
Exanima
Shared: Dungeon Crawler · Physics · Difficult
Hades II
Shared: Dungeon Crawler · Action Roguelike · Action
FTL: Faster Than Light
Shared: Perma Death · Difficult · Roguelike
Cairn
Shared: Exploration · Difficult · Atmospheric
Risk of Rain 2
Shared: Action Roguelike · Loot · Roguelike
Tales of Maj'Eyal
Shared: Dungeon Crawler · Perma Death · Difficult
Dungreed
Shared: Action Roguelike · Dungeon Crawler · Roguelike
DR LIVESEY ROM AND DEATH EDITION
Shared: Dungeon Crawler · Difficult · Action
Mortal Sin
Shared: Dungeon Crawler · Action Roguelike · Loot
Monstrum
Shared: Action Roguelike · Atmospheric · Perma Death
The Long Dark
Shared: Exploration · Atmospheric · Survival
Dead Estate
Shared: Action Roguelike · Dungeon Crawler · Perma Death
Risk of Rain (2013)
Shared: Action Roguelike · Perma Death · Difficult
Don't Starve
Shared: Perma Death · Survival · Exploration