Games like Post-Utopia: Europe2999
Games like Post-Utopia: Europe2999 include The Witcher 3: Wild Hunt — Remastered, Enshrouded, Fallout 4, Warframe, and Tainted Grail: The Fall of Avalon. We matched them by the tags players give Post-Utopia: Europe2999 on Steam (Action RPG, Choices Matter, Perma Death, Adventure, and Time Management): closest matches first, and among equally close ones the better-known games.

The Witcher 3: Wild Hunt — Remastered
Shared: Open World · Adventure · Choices Matter

Enshrouded
Shared: Open World · Adventure · Base Building

Fallout 4
Shared: Open World · Adventure · RPG

Warframe
Shared: Action RPG · Third-Person Shooter · Action

Tainted Grail: The Fall of Avalon
Shared: Adventure · Open World · Action RPG

Palworld
Shared: Open World · Survival · Adventure

The Blood of Dawnwalker
Shared: Action RPG · Adventure · Open World

The Outer Worlds 2
Shared: Action RPG · Adventure · Open World

ARK: Survival Ascended
Shared: Open World · Adventure · Survival

Mass Effect™ Legendary Edition
Shared: Choices Matter · Sci-fi · Action RPG

No Man's Sky
Shared: Open World · Sci-fi · Adventure

Grand Theft Auto V Legacy
Shared: Open World · Adventure · Action

Hogwarts Legacy
Shared: Adventure · Open World · Action RPG

Dragon's Dogma 2
Shared: Action RPG · Open World · Adventure

ARK: Survival Evolved
Shared: Adventure · Open World · Survival

Don't Starve
Shared: Adventure · Perma Death · Survival

Monster Hunter: World
Shared: Adventure · Open World · Action RPG

Valheim
Shared: Open World · Survival · Adventure

Mass Effect (2007)
Shared: Sci-fi · Choices Matter · Third-Person Shooter

Fallout: New Vegas
Shared: Open World · Adventure · RPG

Middle-earth™: Shadow of Mordor™
Shared: Adventure · Open World · Action RPG

Cyberpunk 2077
Shared: Open World · Sci-fi · RPG

Rust
Shared: Open World · Adventure · Survival

Dune: Awakening
Shared: Adventure · Base Building · Survival