Games like Inken
Games like Inken include Fallout 4, Inscryption, Vampire Crawlers: The Turbo Wildcard from Vampire Survivors, Metro Exodus, and Fallout: New Vegas. We matched them by the tags players give Inken on Steam (Adventure, Action, Strategy, Retro, and First-Person): closest matches first, and among equally close ones the better-known games.

Fallout 4
Shared: Adventure · Post-apocalyptic · Singleplayer

Inscryption
Shared: Card Game · Strategy · Roguelike

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Strategy · Roguelike · Action

Metro Exodus
Shared: Action · Post-apocalyptic · Singleplayer

Fallout: New Vegas
Shared: Post-apocalyptic · Action · Adventure

BioShock Infinite
Shared: Action · First-Person · Adventure

METRO Last Light Redux
Shared: Action · Post-apocalyptic · First-Person

Grand Theft Auto V Legacy
Shared: Action · Adventure · First-Person

METRO 2033 Redux
Shared: Action · Post-apocalyptic · First-Person

Balatro
Shared: Roguelike · Strategy · Card Game

Slay the Spire
Shared: Roguelike · Strategy · Card Game

Half-Life 2
Shared: Action · Adventure · First-Person

Tomb Raider Game of the Year
Shared: Adventure · Action · Singleplayer

Portal 2
Shared: First-Person · Singleplayer · Puzzle

Rise of the Tomb Raider™
Shared: Adventure · Action · Singleplayer

Slay the Spire 2
Shared: Roguelike · Strategy · Card Game

Buckshot Roulette
Shared: Strategy · First-Person · Singleplayer

Dead Cells
Shared: Adventure · Roguelike · Action

Polarity
Shared: Adventure · First-Person · Strategy

Bendy and the Dark Revival
Shared: Action · Adventure · First-Person

Dishonored
Shared: Action · First-Person · Adventure

God of War
Shared: Action · Adventure · Singleplayer

Atomic Heart
Shared: Adventure · Action · Singleplayer

Red Dead Redemption 2
Shared: Adventure · Action · Singleplayer