Lobbies · prototype · v0.1 · made for gamers

Released July 23, 2026 · Cup Dog Games
"Rubinite" is a dark fantasy boss rush action game that utilizes the unique mechanic "Focus" to pinpoint enemies' weaknesses and execute thrust attacks. Follow Ruby, a princess who has escaped from the Scarlet Kingdom, embarking on a journey of revenge to reclaim her kingdom.
Steam · 3.2K reviews · 94% positive
The Rubinite Lobby
[0e4f340] Patch Notes
Patch Notes Version : 0e4f340 Adjusted the witch silhouette staging and reflection position in the tutorial's closing cutscene Fixed the reflection being horizontally flipped in the tutorial's closing cutscene Fixed the screen-slicing effect being stretched horizontally on non-16:9 displays (e.g. S…
[0045e17] Patch Notes
\ Added "Graphic Quality" under Settings → Graphics, trading the render resolution of fullscreen effects for performance \ Major performance and memory optimizations — most noticeable in The Plaguebearer's level \ Audio pass: Roy's Dagger dart shots, the Witch's opening name sequence, the Witch's e…
First Two Weeks of Rubinite — Thank You, Everyone!
Hi everyone, this is Cup Dog Games. Rubinite is about to hit its two-week mark since launch, and in that time we've gathered over 2,300 reviews with nearly 93% positive — thank you so much to all of our players for your support! As our very first title, there's still plenty we fall short on and ple…
via Steam