Games like GOOG
Games like GOOG include Terraria, Vampire Survivors, 20 Minutes Till Dawn, Enter the Gungeon, and SANABI. We matched them by the tags players give GOOG on Steam (Adventure, Bullet Hell, Top-Down Shooter, 2D, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Adventure · 2D · Pixel Graphics

Vampire Survivors
Shared: Bullet Hell · Pixel Graphics · 2D

20 Minutes Till Dawn
Shared: Bullet Hell · Top-Down Shooter · Survival

Enter the Gungeon
Shared: Bullet Hell · Pixel Graphics · Adventure

SANABI
Shared: Pixel Graphics · Adventure · 2D

Hotline Miami
Shared: Pixel Graphics · Top-Down · Indie

BALL x PIT
Shared: Bullet Hell · Top-Down Shooter · Action

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Adventure · 2D

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Top-Down · Action

The Escapists
Shared: Pixel Graphics · 2D · Adventure

Exit the Gungeon
Shared: Adventure · Bullet Hell · Pixel Graphics

Cyberhunt
Shared: Adventure · 2D · Indie

Forager
Shared: Pixel Graphics · Adventure · 2D

Archvale
Shared: Adventure · Bullet Hell · Pixel Graphics

Escape From Duckov
Shared: Adventure · Top-Down Shooter · Action

Sonic Mania
Shared: 2D · Adventure · Pixel Graphics

The Final Station
Shared: Pixel Graphics · Adventure · 2D

Nuclear Throne
Shared: Pixel Graphics · Bullet Hell · Top-Down Shooter

Titan Souls
Shared: Adventure · Pixel Graphics · 2D

Dead Cells
Shared: Adventure · Pixel Graphics · 2D

Bloody Hell
Shared: Bullet Hell · Pixel Graphics · Indie

UFO 50
Shared: Pixel Graphics · 2D · Adventure

Hyper Light Drifter
Shared: Adventure · Pixel Graphics · Indie

Dungeon Munchies
Shared: Adventure · Pixel Graphics · 2D