The IncastroPC test
Fabio Graziosi · June 2026 · updated on 12 November 2026A fast-paced, free-to-play and super lightweight arcade FPS that delivers Call of Duty-style gameplay without demanding high-end hardware. It supports Linux natively, and on Steam Deck it installs and is ready to go with no setup at all.
What we liked
- +Free, native on Linux and Steam Deck Verified: instant install
- +Ultra-smooth gameplay, fast matchmaking and near-zero loading times
- +Great optimization even on older hardware or integrated graphics
Less convincing
- −Graphics and art style give away its mobile roots
- −Intrusive progression system and cosmetics
- −Bots used to fill out matches, and small maps
How we tested it
Performance
Average FPS over 9 min of gameplay, measured with MangoHud. The line marks 60 FPS. Average FPS: how many frames per second on average. 1% low: the FPS in the worst moments (the slowest 1% of frames). The closer the 1% low is to the average, the smoother the game, without stutters.
Also applies to other mini PCs with the same Radeon 780M graphics: Ryzen 7 8845HS, Ryzen 7 8745HS, Ryzen 9 7940HS Same integrated graphics, so similar FPS. They can vary a bit with RAM (speed and dual channel) and with the power limit set by the manufacturer.
Test timeline
Power is the processor's (CPU and graphics) as read by MangoHud: at the wall it's a few watts more. Lighter areas are pauses, menus or loading screens (13 seconds), left out of the calculation.
If you're looking for a no-frills, pick-up-and-play, completely free first-person shooter, Combat Master is one of the nicest surprises for anyone gaming on Linux and Steam Deck. Originally built for mobile but ported to PC with native support, it offers an extremely dynamic shooting experience, with fast movement (slides, sprints, parkour) and gunplay that closely recalls the most frantic entries in Call of Duty. Its real strength is how immediate it is: it boots in just a few seconds, there's no setup or Proton to configure, and it holds a locked 60+ FPS even on older machines.
On the technical side, it inevitably shows the limits of its mobile-first nature: textures, weapon models and map quality are basic, but that translates into outstanding hardware efficiency. During our MangoHud testing, the game showed low power draw on handhelds and a rock-solid frame rate with no noticeable drops, even in the most chaotic firefights.
The monetization model revolves around season passes and cosmetics; you don't need to spend anything to have fun in quick matches. Game modes range from classic Team Deathmatch to objective-based modes, making it ideal for quick pick-up-and-play sessions. If you're after a deep military sim or next-gen graphics, this isn't the game for you, but as a quick, barrier-free pastime on Linux, it has very few rivals among F2P titles.
