Games like hgmGame-sheep
Games like hgmGame-sheep include Brawlhalla, Geometry Dash, Potion Craft: Alchemist Simulator, A Dance of Fire and Ice, and Melvor Idle. We matched them by the tags players give hgmGame-sheep on Steam (Casual, 2D Fighter, 2D Platformer, 2D, and 1980s): closest matches first, and among equally close ones the better-known games.

Brawlhalla
Shared: 2D Fighter · Casual · 2D Platformer

Geometry Dash
Shared: 2D · Level Editor · Singleplayer

Potion Craft: Alchemist Simulator
Shared: Crafting · Singleplayer · 2D

A Dance of Fire and Ice
Shared: Level Editor · 2D · Singleplayer

Melvor Idle
Shared: Casual · 2D · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Casual · 2D · Singleplayer

One Finger Death Punch
Shared: 2D Fighter · 2D · Casual

BattleBlock Theater®
Shared: Level Editor · 2D · 2D Platformer

DAVE THE DIVER
Shared: Casual · Singleplayer · 2D

Razortron 2000
Shared: Casual · 1980s · 2D

Peggle Deluxe
Shared: Casual · 2D · Singleplayer

Zup! S
Shared: Casual · 2D · Singleplayer

MARVEL Tōkon: Fighting Souls
Shared: 2D Fighter · Casual · 2D

Sonic Superstars
Shared: 2D Platformer · Casual · 2D

Braid
Shared: 2D Platformer · 2D · Casual

Vampire Survivors
Shared: 2D · Casual · Singleplayer

Stick Fight: The Game
Shared: 2D Fighter · 2D · Casual

Bloons TD 6
Shared: Casual · Singleplayer · 2D

Kingdom Rush - Tower Defense
Shared: 2D · Casual · Singleplayer

Game Dev Tycoon
Shared: Casual · 2D · Singleplayer

Rhythm Doctor
Shared: Level Editor · 2D · Singleplayer

Momoka (wo) Wasshoi
Shared: Casual · 2D Platformer · 2D

RetroMaze
Shared: Casual · 2D · 1980s

Thank Goodness You're Here!
Shared: Casual · 2D Platformer · 2D