Games like Oaken
Games like Oaken include Slay the Spire, Monster Train, The Last Spell, Wildfrost, and The Dungeon Of Naheulbeuk: The Amulet Of Chaos. We matched them by the tags players give Oaken on Steam (Turn-Based Tactics, Card Battler, Singleplayer, Roguelite, and Fantasy): closest matches first, and among equally close ones the better-known games.

Slay the Spire
Shared: Card Battler · Singleplayer · Roguelite

Monster Train
Shared: Card Battler · Roguelite · Turn-Based Tactics

The Last Spell
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Strategy

Wildfrost
Shared: Card Battler · Turn-Based Tactics · Roguelite

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Strategy

ENDLESS Legend™
Shared: Fantasy · Turn-Based Strategy · Hex Grid

Roguebook
Shared: Singleplayer · Roguelite · Turn-Based Tactics

STAR WARS Zero Company™
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Strategy

Mewgenics
Shared: Turn-Based Tactics · Roguelite · Turn-Based Strategy

Into the Breach
Shared: Turn-Based Tactics · Turn-Based Strategy · Roguelite

Darkest Dungeon® II
Shared: Turn-Based Tactics · Roguelite · Singleplayer

King's Bounty II
Shared: Fantasy · Turn-Based Strategy · Hex Grid

Warhammer 40,000: Mechanicus
Shared: Turn-Based Tactics · Singleplayer · Turn-Based

XCOM®: Chimera Squad
Shared: Turn-Based Tactics · Singleplayer · Turn-Based Strategy

Blood Bowl 2: Legendary Edition (Classic)
Shared: Singleplayer · Fantasy · Board Game

King's Bounty: The Legend
Shared: Fantasy · Turn-Based Strategy · Singleplayer

Cross Blitz
Shared: Roguelite · Card Battler · Turn-Based Strategy

Trials of Fire
Shared: Turn-Based Tactics · Card Battler · Roguelite

Blackguards
Shared: Fantasy · Singleplayer · Turn-Based

Eador. Masters of the Broken World
Shared: Fantasy · Turn-Based Strategy · Singleplayer

Age of Wonders III
Shared: Fantasy · Turn-Based Strategy · Singleplayer

Fell Seal: Arbiter's Mark
Shared: Turn-Based Tactics · Turn-Based Strategy · Fantasy

Monster Sanctuary
Shared: Turn-Based Tactics · Singleplayer · Creature Collector

For The King II
Shared: Turn-Based Strategy · Board Game · RPG