Games like STREET UNi X
Games like STREET UNi X include skate., Pseudoregalia, Parking Garage Rally Circuit, Shovel Knight: Treasure Trove, and Session: Skate Sim. We matched them by the tags players give STREET UNi X on Steam (Skateboarding, Arcade, BMX, Parkour, and Platformer): closest matches first, and among equally close ones the better-known games.

skate.
Shared: Skateboarding · Controller · Action

Pseudoregalia
Shared: Parkour · Platformer · Old School

Parking Garage Rally Circuit
Shared: Arcade · Retro · 1990's

Shovel Knight: Treasure Trove
Shared: Platformer · Retro · Action

Session: Skate Sim
Shared: Skateboarding · Sports · Action

PAC-MAN™ Championship Edition DX+
Shared: Arcade · Retro · Action

The Ramp
Shared: Skateboarding · BMX · Sports

Warhammer 40,000: Boltgun
Shared: Retro · Arcade · Old School

Volgarr the Viking
Shared: Platformer · Retro · Arcade

Rogue Legacy 2
Shared: Arcade · Platformer · Action

Lunistice
Shared: Platformer · Retro · Arcade

Sonic Adventure DX
Shared: Platformer · Retro · Action

Old School Rally
Shared: Arcade · Retro · Old School

Tony Hawk's™ Pro Skater™ 1 + 2
Shared: Skateboarding · Arcade · Sports

Cyber Hook
Shared: Parkour · Platformer · Action

TEKKEN 7
Shared: Arcade · Action · Controller

STORROR Parkour PRO
Shared: Parkour · Action · Arcade

My Friend Pedro
Shared: Parkour · Action · Platformer

METAL SLUG 3
Shared: Arcade · Retro · Action

Neon White
Shared: Parkour · Platformer · Action

SpeedRunners
Shared: Platformer · Parkour · Action

Commander Keen
Shared: Platformer · Retro · 1990's

Haste
Shared: Parkour · Arcade · Action

BMX Streets
Shared: BMX · Sports · Controller