
A sequel to the Steam Awards finalist. Tiny, glossy micro-orbs slipped through space, firewalls and pixels landing straight into your CPU. Your desktop is no longer a workspace: it’s a bouncing arena of orbital chaos. Interact with your desktop while playing as you purge the Micro Spheres!
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A sequel to the Steam Awards finalist. Tiny, glossy micro-orbs slipped through space, firewalls and pixels landing straight into your CPU. Your desktop is no longer a workspace: it’s a bouncing arena of orbital chaos. Interact with your desktop while playing, watch videos, chat with friends, keep apps open while every window, icon and tab becomes part of a spherical battlefield as you purge the system one ricochet at a time!

Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French*, Italian*, German*, Spanish - Spain*, Arabic*, Bulgarian*, Czech*, Danish*, Dutch*, Finnish*, Greek* +91 more
Engagement
Hours played at review time, across 32 reviews with recorded playtime.
Reviews
For its low price, you get a solid game with interesting features. I recommend buying it!
[b]Finally, another part of a wonderful game.[/b] This time, we'll be defending ourselves not from dinosaurs, but from flying spheres. And it's much more convenient - you can immediately see the enemy and their hitbox. The gameplay is just as dynamic, we shoot back at everything that flies at us. And most importantly, we do this on top while using the computer. Definitely a top game genre. [code]If you read the review and liked it, don't forget to give it a thumbsup;)[h3][i]The further - The better♥️[/i][/h3][/code]
Simple, fun and very affordable. No regrets buying this one.
I've really taken a liking to the games from this company. They're easy, relaxed, and most importantly, you can play them while watching a stream or doing other things.
CPU Invaders – Micro Spheres is an arcade-style top-down shooter developed and published by Microblast Games that continues the series’ distinctive concept of transforming your desktop into a battlefield. Instead of placing players in sprawling sci-fi landscapes or complex arenas, the game stages its action directly over your operating system interface, turning rogue micro spheres into visual representations of digital invaders threatening your CPU. The result is a compact yet energetic shooter that leans heavily into reflex-based gameplay and minimalist design. The core mechanic revolves around maneuvering a small player-controlled entity while shooting down swarming spheres that ricochet unpredictably across the screen. Movement and aiming are straightforward, ensuring that the player can focus entirely on survival and positioning. As waves intensify, spheres multiply and move faster, filling the space with chaotic motion that demands quick reactions and careful spatial awareness. The simplicity of the controls contrasts with the escalating density of enemies, creating tension through movement rather than through layered systems. A defining feature of Micro Spheres is its desktop overlay mode. The action unfolds over your actual desktop environment, allowing other applications to remain visible beneath the game window. This approach gives the experience a playful meta quality, as players can theoretically continue watching videos or monitoring tasks while fending off digital threats. The overlay can be repositioned for convenience, reinforcing the idea that this is a lightweight, flexible arcade diversion rather than a full-screen immersive epic. Level progression is structured around short stages that gradually increase in difficulty. Early levels introduce manageable enemy patterns, but later stages demand sustained concentration as micro spheres move in complex trajectories. The pacing is brisk, encouraging repeat attempts to improve survival time and accuracy. While there are achievements to pursue, the overall structure remains intentionally streamlined, with no deep upgrade trees or elaborate customization systems. Visually, the game adopts a clean, neon-infused aesthetic that emphasizes clarity. Spheres glow brightly against the backdrop, ensuring they remain easy to track even when multiple threats overlap. Effects are sharp but restrained, prioritizing readability during fast-paced encounters. The soundtrack maintains an energetic tone that complements the arcade atmosphere without overpowering the action. In terms of depth, CPU Invaders – Micro Spheres is intentionally modest. It does not feature multiplayer modes, narrative arcs, or extensive progression mechanics. Instead, its appeal lies in short, adrenaline-fueled bursts of play that test reflexes and focus. This makes it well-suited for casual sessions or brief breaks rather than extended marathons. Players seeking layered strategy or expansive content may find it limited, but those who appreciate straightforward arcade challenges will recognize its focused execution. Ultimately, CPU Invaders – Micro Spheres succeeds by embracing its identity as a compact desktop-integrated shooter. Its responsive controls, escalating chaos, and distinctive overlay presentation give it a recognizable niche within the indie arcade space. While it avoids complexity in favor of immediacy, it delivers consistent, fast-paced action that captures the spirit of classic reflex-driven shooters in a modern, playful digital setting. Rating: 7/10
If you haven't completely destroyed your desktop in the previous games, you have a chance to catch up. Now you'll be bombarded with waves of mini-spheres.
Cheap as a coffee, but lasts way longer. Great value for the money.
Low price, high fun. If you like shooters, just get it.
I went to test my aim, and ended up losing my monitor after making 5 holes in it. 10 monitors out of 10, be careful with your nerves.
Fast, chaotic fun with smooth controls and addictive score chasing.
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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