Games like Reach Coin
Games like Reach Coin include Haste, Super Hexagon, A Dance of Fire and Ice, VHOLUME, and ALTF4. We matched them by the tags players give Reach Coin on Steam (Casual, Indie, Runner, Arcade, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Haste
Shared: 3D Platformer · Runner · Arcade

Super Hexagon
Shared: Indie · Arcade · Difficult

A Dance of Fire and Ice
Shared: Indie · Arcade · Casual

VHOLUME
Shared: Runner · Casual · 3D Platformer

ALTF4
Shared: Runner · 3D Platformer · Arcade

AudioSurf
Shared: Indie · Casual · Arcade

Slime Rancher 2
Shared: Colorful · Casual · Singleplayer

Drift86
Shared: Casual · Indie · Arcade

Orbt XL
Shared: Arcade · Casual · Minimalist

Defunct
Shared: Indie · Casual · Arcade

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

Moncage
Shared: Casual · Indie · Surreal

Timberman
Shared: Casual · Indie · Arcade

Razortron 2000
Shared: Casual · Indie · Arcade

Passpartout: The Starving Artist
Shared: Casual · Indie · Colorful

Slime Rancher
Shared: Casual · Colorful · Singleplayer

Retrowave
Shared: Indie · Casual · Racing

Spin Rhythm XD
Shared: Casual · Indie · Arcade

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

Ding Dong XL
Shared: Runner · Arcade · Casual

Strange Jigsaws
Shared: Casual · Colorful · Indie

Donut County
Shared: Casual · Indie · 3D

MUSYNX
Shared: Indie · Casual · Arcade

Mini Motorways
Shared: Casual · Indie · Minimalist