The Alpha Nomos demo from RibCage Games is a systems-first hands-on meant to show intent and performance. This look at the build running on Linux and Windows focuses on combat flow, accessibility, and stability.
While an early access demo copy was provided via Keymailer for promotional coverage, these observations represent a neutral look at the current gameplay systems.
Alpha Nomos | Announce Trailer
Performance and Platform Behavior
When launching the Alpha Nomos demo, there was no perceivable lag, shader compilation, or other forms of warming up screens. While running the game at Very High settings with MangoHud via the %command% MangoHud launch option, the game mostly maintained its 60fps target on average. I did notice some occasional 1% lows of 55fps during more intense sequences.
Stability varied depending on the compatibility layer used. I experienced crashing while using Proton Experimental, but I was able to finish the demo successfully with the recently updated GE-Latest.
On Windows, the game also tries to maintain a lock at 60fps and dropped to 55fps in many of the fights, which lines up with the performance seen on Linux.
Test System
- CPU: AMD Ryzen 9 5900X
- GPU: Sapphire Nitro+ Radeon RX 9070 XT
- RAM: 64GB DDR4
- Storage: NVMe SSD
- OS: Linux (Proton GE-Latest)
- Resolution: 2560×1440
Accessibility and Options
The options menu appears early and is fairly basic. You can display or hide damage numbers, tweak the gameplay to be more rhythm-focused for an easier experience, or make the controls more precise for a player more experienced with action games.

A Timing assist configuration slider allows you to choose between Responsive control (tight, immediate actions) and Rhythmic control (actions partially aligned with the beat). There is also an option to display a small metronome for visual feedback, making it easier to train your hand-eye coordination to learn the gameplay.

Rhythm Action and Combat Systems
Combat is built around musical timing and resource management. Cello’s primary weapon, a modified saxophone, uses light and heavy swings for its attacks. Attacks, dodges, and combos gain power and precision when performed in sync with the background track.

Enemy types are introduced with a cinematic styled cut-in, like the SCRUB (Surprisingly Combative Really Ugly Bastard), and require switching up your strategy to defeat. They are fast and encourage you to time your dodges and counterattacks.

The nutcracker enemy must be staggered through rhythmic pressure and heavy attacks before they can take a respectable amount of damage. Movement and defense are tied to the same rhythm. Dodging and jumping pull from a shared energy gauge, which forces players to balance mobility with rhythmic precision.
Editor’s Take
For a smaller dev taking notes from Hi-Fi Rush, the experience is solid, though the art style, frame rate dips, and direction could use some work. A better emphasis on using the camera to guide the player towards the next objective, much like other fixed camera games, would go a long way.
Combat could use some tweaks to be tighter. With the FPS drops, there was trouble trying to get some of the actions out in sync outside of the tutorial tooltip. Adding customizable HUD placement, such as moving it to the bottom right, would also make it easier to keep an eye on the action while staying aware of current health.
Alpha Nomos is planned for a Q3 2026 release on PC by RibCage Games.




