Games like Robot City: Delivery
Games like Robot City: Delivery include Chained Together, ALTF4, VHOLUME, A Hat in Time, and Kao the Kangaroo: Round 2 (2003 re-release). We matched them by the tags players give Robot City: Delivery on Steam (Casual, Adventure, Arcade, Platformer, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Chained Together
Shared: Adventure · Casual · Platformer

ALTF4
Shared: Runner · 3D Platformer · Arcade

VHOLUME
Shared: Casual · 3D Platformer · Platformer

A Hat in Time
Shared: 3D Platformer · Adventure · Platformer

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Adventure · Casual · 3D Platformer

Montaro
Shared: Casual · Anime · Cute

Bomb Rush Cyberfunk
Shared: Adventure · 3D Platformer · 3D

Haste
Shared: 3D Platformer · Adventure · Runner

Kao the Kangaroo: Mystery of the Volcano (2005 re-release)
Shared: Adventure · Casual · Platformer

StrikeForce Kitty
Shared: Arcade · Casual · Platformer

Pikuniku
Shared: Adventure · Casual · Platformer

Woodle Tree Adventures
Shared: Adventure · Platformer · 3D Platformer

Toree 2
Shared: Adventure · 3D Platformer · Platformer

Rogue Legacy 2
Shared: Arcade · Platformer · Adventure

Yooka-Laylee
Shared: Adventure · 3D Platformer · Platformer

Lunistice
Shared: 3D Platformer · Platformer · Arcade

Spyro™ Reignited Trilogy
Shared: Adventure · 3D Platformer · Platformer

Refunct
Shared: 3D Platformer · Casual · Platformer

Only Climb: Better Together
Shared: 3D Platformer · Platformer · Arcade

PAC-MAN WORLD 2 Re-PAC
Shared: Adventure · Platformer · Arcade

pureya
Shared: Casual · Arcade · Platformer

Mirror 2: Project X
Shared: 3D · Anime · Casual

hololive Treasure Mountain
Shared: Casual · Arcade · 3D Platformer

Grow Up
Shared: Adventure · Casual · 3D Platformer