Games like CounterBlocks
Games like CounterBlocks include Vampire Survivors, LUFTRAUSERS, Exit the Gungeon, Planes, Bullets and Vodka, and Windowkill. We matched them by the tags players give CounterBlocks on Steam (Action, Arcade, 2D, Retro, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · 2D · Indie

LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell

Exit the Gungeon
Shared: Arcade · Action · Indie

Planes, Bullets and Vodka
Shared: Action · Retro · Arcade

Windowkill
Shared: Action · Arcade · Bullet Hell

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

Streets of Rage 4
Shared: Action · 2D · Arcade

Megabonk
Shared: Action · Bullet Hell · Indie

UFO 50
Shared: Action · Retro · 2D

BALL x PIT
Shared: Action · Arcade · Bullet Hell

ZeroRanger
Shared: Action · Bullet Hell · Arcade

Savant - Ascent
Shared: Action · Indie · Score Attack

Geometry Wars: Retro Evolved
Shared: Arcade · Retro · Bullet Hell

Kung Fury: Street Rage - Ultimate Edition
Shared: Arcade · Action · Retro

Broken Armor
Shared: Action · Retro · 2D

Boneraiser Minions
Shared: Bullet Hell · 2D · Arcade

Timberman
Shared: Action · 2D · Indie

Shovel Knight: Treasure Trove
Shared: Retro · 2D · Action

Cyberhunt
Shared: Action · Indie · Arcade

Star Saviors
Shared: Action · Bullet Hell · Arcade

UBERMOSH Vol.5
Shared: Action · Arcade · Indie

Super Hexagon
Shared: Arcade · Indie · Action

A Dance of Fire and Ice
Shared: 2D · Arcade · Indie

Rogue Legacy 2
Shared: Arcade · Action · Indie