Games like CITY - 909
Games like CITY - 909 include Portal 2, Sonic Frontiers, Ratchet & Clank: Rift Apart, A Story About My Uncle, and Little Nightmares II. We matched them by the tags players give CITY - 909 on Steam (Adventure, 3D Platformer, Singleplayer, Futuristic, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Singleplayer · Platformer · Puzzle

Sonic Frontiers
Shared: 3D Platformer · Adventure · Singleplayer

Ratchet & Clank: Rift Apart
Shared: Adventure · 3D Platformer · Singleplayer

A Story About My Uncle
Shared: Adventure · Singleplayer · 3D Platformer

Little Nightmares II
Shared: Adventure · Singleplayer · Puzzle

Ori and the Will of the Wisps
Shared: Singleplayer · Adventure · Platformer

The Last Campfire
Shared: Adventure · Singleplayer · Puzzle

Sonic Adventure DX
Shared: 3D Platformer · Adventure · Platformer

Pumpkin Jack
Shared: Adventure · 3D Platformer · Singleplayer

Crash Bandicoot™ 4: It’s About Time
Shared: 3D Platformer · Adventure · Platformer

Indiana Jones and the Great Circle
Shared: Action-Adventure · Adventure · Singleplayer

COCOON
Shared: Adventure · Puzzle · Indie

Hob
Shared: Adventure · Singleplayer · Platformer

LIMBO
Shared: Adventure · Platformer · Indie

Mirror's Edge™
Shared: 3D Platformer · Action-Adventure · Singleplayer

Wavetale
Shared: Adventure · 3D Platformer · Action-Adventure

Chants of Sennaar
Shared: Adventure · Singleplayer · Puzzle

Chained Together
Shared: Adventure · Platformer · 3D Platformer

Psychonauts
Shared: Adventure · Singleplayer · Platformer

Tomb Raider I-III Remastered Starring Lara Croft
Shared: Action-Adventure · Singleplayer · Adventure

Little Nightmares
Shared: Adventure · Singleplayer · Indie

SONIC X SHADOW GENERATIONS
Shared: 3D Platformer · Singleplayer · Adventure

The Plucky Squire
Shared: Adventure · 3D Platformer · Action-Adventure

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