Games like Fluxion
Games like Fluxion include Kao the Kangaroo: Round 2 (2003 re-release), Mirror 2: Project X, Bloons TD 6, Trackmania, and Need for Speed™ Unbound. We matched them by the tags players give Fluxion on Steam (Casual, Racing, 3D Fighter, 3D Platformer, and 3D): closest matches first, and among equally close ones the better-known games.

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

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

Bloons TD 6
Shared: Casual · Singleplayer · 3D

Trackmania
Shared: Racing · 3D · Singleplayer

Need for Speed™ Unbound
Shared: Racing · Singleplayer · Casual

Tokyo Xtreme Racer
Shared: Racing · 3D · Singleplayer

Paddle Paddle Paddle
Shared: Casual · Racing · Singleplayer

Haste
Shared: 3D Platformer · Racing · Singleplayer

Hard Truck 2: King of the Road
Shared: Casual · Racing · 3D

Marble It Up! Ultra
Shared: 3D Platformer · Racing · Casual

Bro Falls
Shared: Casual · Racing · 3D Platformer

Garfield Kart
Shared: Racing · Casual · 3D

Drift86
Shared: Racing · Casual · Singleplayer

s&box
Shared: Casual · 3D Platformer · 3D

FlatOut 2
Shared: Racing · Singleplayer · Casual

Assetto Corsa Rally
Shared: Racing · 3D · Singleplayer

PowerWash Simulator
Shared: Casual · 3D · Singleplayer

Asphalt Legends
Shared: Racing · Singleplayer · 3D

Retrowave
Shared: Racing · Casual · Singleplayer

VHOLUME
Shared: 3D Platformer · Casual · 3D

Disney Speedstorm
Shared: Racing · Casual · 3D

Jalopy
Shared: Racing · Casual · Singleplayer

Razortron 2000
Shared: Casual · Racing · Singleplayer

OutDrive
Shared: Racing · Casual · Singleplayer