Games like OK Boomer
Games like OK Boomer include PEAK, Lethal Company, Content Warning, Escape the Backrooms, and R.E.P.O.. We matched them by the tags players give OK Boomer on Steam (Online Co-Op, Action Roguelike, Exploration, Time Management, and Action): closest matches first, and among equally close ones the better-known games.

PEAK
Shared: Online Co-Op · Exploration · First-Person

Lethal Company
Shared: Online Co-Op · Exploration · First-Person

Content Warning
Shared: Online Co-Op · Exploration · Action Roguelike

Escape the Backrooms
Shared: Online Co-Op · Exploration · First-Person

R.E.P.O.
Shared: Online Co-Op · First-Person · Exploration

KLETKA
Shared: Online Co-Op · Action · First-Person

Gamble With Your Friends
Shared: Online Co-Op · Exploration · First-Person

Wayfinder
Shared: Online Co-Op · Exploration · Dungeon Crawler

Avatar: Frontiers of Pandora™
Shared: Online Co-Op · Action · Exploration

Farever
Shared: Online Co-Op · Action · Exploration

Cultivation Tales
Shared: Online Co-Op · Sandbox · Action

Echo Point Nova
Shared: Online Co-Op · Exploration · Action

Gunfire Reborn
Shared: Online Co-Op · Action Roguelike · Action

Terraria
Shared: Sandbox · Exploration · Online Co-Op

Backrooms: Escape Together
Shared: Online Co-Op · Exploration · First-Person

Pacify
Shared: Online Co-Op · Exploration · First-Person

PILGRIM
Shared: Exploration · Dungeon Crawler · First-Person

Five Nights at Freddy's: Secret of the Mimic
Shared: Action · Exploration · First-Person

Sea of Thieves: 2026 Edition
Shared: Online Co-Op · Action · Exploration

MIMESIS
Shared: Online Co-Op · Exploration · Dungeon Crawler

RV There Yet?
Shared: Online Co-Op · Exploration · First-Person

Wizard with a Gun
Shared: Action · Exploration · Sandbox

Barony
Shared: Action Roguelike · Online Co-Op · Dungeon Crawler

Black Desert
Shared: Exploration · Sandbox · First-Person