Games like Timekeeper
Games like Timekeeper include Prince of Qin, CrossCode, Eastward, Dragon Age™: The Veilguard, and Tails of Iron. We matched them by the tags players give Timekeeper on Steam (Adventure, Action RPG, CRPG, 2D, and 1990's): closest matches first, and among equally close ones the better-known games.

Prince of Qin
Shared: Adventure · Action RPG · 2D

CrossCode
Shared: Action RPG · 2D · Adventure

Eastward
Shared: Adventure · Action RPG · Singleplayer

Dragon Age™: The Veilguard
Shared: Action RPG · CRPG · Singleplayer

Tails of Iron
Shared: Action RPG · Adventure · 2D

Secrets of Grindea
Shared: Adventure · Action RPG · Singleplayer

The Curse of Monkey Island
Shared: Adventure · 1990's · Retro

Black Myth: Wukong
Shared: Action RPG · Adventure · Singleplayer

Oddworld: Abe's Oddysee®
Shared: Adventure · 2D · Retro

Wolcen: Lords of Mayhem
Shared: Action RPG · Adventure · Singleplayer

Sonic Mania
Shared: 2D · Retro · Adventure

Dragon's Dogma 2
Shared: Action RPG · Adventure · Singleplayer

The Dark Eye: Memoria
Shared: Adventure · 2D · Singleplayer

Dead Cells
Shared: Adventure · 2D · Singleplayer

Shovel Knight: Treasure Trove
Shared: Adventure · Retro · 2D

Where Winds Meet
Shared: Action RPG · Adventure · Singleplayer

MEGA MAN X DiVE Offline
Shared: 2D · Action RPG · Singleplayer

Thimbleweed Park™
Shared: Adventure · Retro · 1990's

SANABI
Shared: Adventure · 2D · Singleplayer

Day of the Tentacle Remastered
Shared: Adventure · 1990's · Singleplayer

Hogwarts Legacy
Shared: Adventure · Singleplayer · Action RPG

Broken Sword 2 - the Smoking Mirror: Remastered (2010)
Shared: Adventure · Retro · 1990's

Indiana Jones® and the Fate of Atlantis™
Shared: Adventure · 1990's · Retro

Reventure
Shared: Adventure · 2D · Singleplayer

