Clusterbug: Blast Mutated Bugs in a Free-to-Play Bullet Hell Shooter

8/21/2026, 5:34:12 PM

Release date: 7/6/2026

Tags: #action #indie #shoot-'em-up #bullet-hell #arcade #singleplayer #2d #pixel-graphics

User Reviews

Score: 100%1 user reviews
Review Count: 1 reviews
Fetched At: 8/21/2026, 5:34:12 PM

Reference prices

Japan

Free to Play (JPY)

Steam JP

Free to Play (USD)

Steam

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: Free to Play
Global Price: Free to Play
Sale Status: Regular pricing
Price Checked At: 8/21/2026, 5:30:25 PM

Key highlight

Clusterbug is a free-to-play 2D bullet hell shooter where you pilot specialized ships to eradicate mutated bugs controlled by a mechanical virus across various planets.

Who this is for

A highly engaging and free-to-play bullet hell shooter that offers a satisfyingly intense experience.

🖥️ Hardware Guide for Comfortable Play

Based on the game's recommended specs, showing a comfortable performance target and example parts (PassMark reference)

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CPU

Game's recommended spec

Intel Core i5-8400 or AMD Ryzen 5 2600

Comfortable play target

61,363 pts(~130% above spec of 47,202 pts)

Parts near this range

Intel Core Ultra 9 290K Plus60,860 pts AMD Ryzen 9 7950X62,136 pts AMD Ryzen 9 7950X3D62,302 pts

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GPU

Game's recommended spec

NVIDIA GTX 1050 Ti or AMD Radeon RX 560

Comfortable play target

8,275 pts(~130% above spec of 6,365 pts)

Parts near this range

Radeon RX590 GME8,277 pts GeForce GTX Titan8,225 pts Intel Arc B370 GPU8,435 pts

* Scores are reference values. Actual performance varies by in-game settings, resolution, and system environment.

Build a PC to match this performance → BTO Guide

Details

Overview

Prepare for an interstellar battle in Clusterbug, a free-to-play bullet hell shoot 'em up developed by Visionair Games and published by Mediacollege Amsterdam. Players are tasked with piloting specialized ships, the result of a unique "Virus Induced Mechanized Metamorphosis" process, to eradicate mutated bugs that have been taken over by a mechanical virus. The fate of entire worlds and the galaxy rests on your ability to destroy these infected creatures and their hivemind leaders.

Highlights

Genre-Bending Action: Dive into a fast-paced bullet hell shoot 'em up experience with arcade and 2D pixel graphics.
Galactic Pest Control: Travel across diverse planets to eliminate colonies of mutated bugs and their leaders, stopping the spread of a mind-controlling mechanical virus.
Free-to-Play Cosmic Adventure: Enjoy this single-player action-adventure title without any upfront cost, making it accessible to all aspiring galactic defenders.

Who It's For

Clusterbug is designed for players who enjoy classic shoot 'em up mechanics, particularly the intense "bullet hell" subgenre. Fans of arcade-style action, 2D pixel art, and single-player experiences will find a lot to love here. If you're looking for a free title that offers challenging gameplay and a cosmic theme, this game is worth checking out.