Rubinite

Developer: Cup Dog Games, GameWorks Ventures
Released: Jul 22, 2026
Steam reviews: 94% of players recommend it, from 4,299 reviews — Steam calls that “Very Positive”
Tags: ActionIndieRPG

View on Steam

On Linux, Steam Deck and Steam Machine

Proton: PlatinumDeck VerifiedSteam Machine: VerifiedSteamOS Compatible

This game runs perfectly out of the box under Proton, per ProtonDB reports (6 reports). Valve rates it Deck Verified.

Valve rates it Verified on Steam Machine. Valve marks it SteamOS Compatible.

Proton tier: ProtonDB · Deck rating: Valve · Steam Machine, Steam Frame and SteamOS ratings: Valve · Compare 2,053 games · Every game Valve rated for Steam Machine

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Where to buy

Steam

Buy on Steam

Compare elsewhere:GOG ↗Epic ↗

What owning this involves

Cloud saves · The store backs this game's saves up. That cover ends if your account does.From the store listing

Only what the store discloses. Nothing listed here means the store disclosed nothing — not that there is nothing to disclose.

Features

Full controller support

Single-player
Steam Achievements
Full controller support
Gamepad Recommended
DualShock Controller Support
DualSense Controller Support
Steam Cloud
Steam Leaderboards
Family Sharing

From the game's Steam store page.

Languages

English
Japanese
Simplified Chinese
Traditional Chinese
Korean
Portuguese - Brazil
Russian
Ukrainian

Steam lists 8 languages.

Age rating & content

DEJUS 12 · ViolênciaThe rating board's own rating, as Steam relays it
IGRS 15 · KekerasanThe rating board's own rating, as Steam relays it

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About this game

The developer's description, from the game's Steam store page.

Rubinite is an extremely challenging boss rush action game set in a dark fairy tale world.

The key to combat is one distinctive core mechanic: Focus. Use Focus to read an enemy, expose its weak point, and land a lethal strike.

You play as Ruby, a princess on a journey of revenge to reclaim her home: The Scarlet Kingdom.

Fight the Bloodstained to the Death

Ruby’s blade alone will barely wound them. Find their weak points, drive the lethal strike home, and make it out alive.

Your Bloodline: Both a Blessing and a Curse

To take back the Scarlet Kingdom, Ruby must face the Bloodstained in every form they take, whether it be an ancient secret cult, undying parasites, or the source of a deadly plague.

Grip your blade and challenge foes that grow deadlier with every step.