Rubinite

What Is Rubinite?

Rubinite is a boss rush action RPG from Cup Dog Games, released July 22, 2026 on Steam for $17.99 (launch 10% off at $17.99). You play as Ruby, a princess with crimson eyes who sets out to reclaim the Scarlet Kingdom from the Bloodstained — twisted creatures that overran her home.

The entire game is built around one mechanic: Focus. Use it to read an enemy's attack patterns, expose their weak point, then drive a lethal strike home. No grinding, no trash mobs. Every encounter is a boss fight.

Noisy Pixel called it "a stellar boss rush RPG with memorable combat and heart." Steam players agree — 285 positive reviews out of 321 total put it at Very Positive.

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Story & Setting

The Scarlet Kingdom fell to a plague called the Bloodstained. Ruby, the kingdom's princess, survived with a rare power — her crimson eyes can see the weak points in any Bloodstained creature. She sets out alone, blade in hand, to carve a path home through a kingdom that's no longer hers.

The world is dark fantasy with pixel art environments. Think ruined castles, blighted forests, and underground catacombs where ancient cults worship the Bloodstained source. The story unfolds through boss encounters and environmental storytelling — NPCs are rare, and most of what happened to the kingdom is shown through its ruins.

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Core Mechanics

Focus — The Central Combat Loop

Every fight in Rubinite follows the same rhythm:

1. Read the enemy. Watch their attack patterns. Each Bloodstained boss has tells — a flash, a stance shift, a sound cue.
2. Activate Focus. Right click (or Y/Triangle on controller) to enter Focus mode. Time slows.
3. Find the weak point. A glowing crimson mark appears on the boss. It moves. It fades. You have a narrow window.
4. Strike. Left click (or X/A) while the weak point is exposed. A successful hit deals massive damage and stuns the boss briefly.
5. Reset and repeat. The boss recovers, changes phase, and the dance begins again.

Ruby's blade alone barely scratches the Bloodstained. Focus strikes are the only way to deal real damage. This means every fight is a pattern-recognition puzzle, not a DPS check.

Talisman Crafting

Every Bloodstained you kill drops Pureblood — a resource used to craft Talismans. Talismans are equippable modifiers that change how Ruby fights.

You can equip up to 3 Talismans at once. Mixing and matching is the main build system — there's no skill tree, no stat allocation.

Health & Resource Management

Ruby has HP and a Focus meter. HP is straightforward — get hit, lose HP. The Focus meter recharges over time. Landing normal attacks speeds up the recharge. Pureblood is a permanent resource — you keep it between deaths.

Dying sends you back to the last save point with your Pureblood intact. There's no penalty except lost progress in the current arena. This keeps the focus (pun intended) on learning boss patterns, not grinding back lost resources.

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Boss Guide — Key Fights

Rubinite has 18 boss encounters. Here are the notable ones:

The Blood Knight (First Boss)

Your introduction to Focus. The Blood Knight has three attacks: a slow overhead slash, a shield bash, and a lunge. The weak point appears on his chest after he finishes the overhead slash. Dodge the slash, activate Focus, strike.

Tip: Don't try to Focus during the lunge — the window is too tight. Wait for the overhead slash. It's the safest opener.

The Plague Priestess (Mid-Game)

She summons Bloodstained minions that heal her. The fight has two phases. Phase 1: kill minions to stagger her, then Focus on her heart. Phase 2: she floats and rains blood. The weak point is on her right eye. Wait for the eye to glow, then Focus-attack while she's casting.

Tip: Equip Crimson Shard before this fight. The extended Focus window helps when she moves erratically.

The Blood Mother (Final Boss)

Three phases. Phase 1: melee combos with a tail whip. Phase 2: arena-wide blood geysers. Phase 3: rapid teleport strikes. The weak point shifts between her chest and head between phases.

The Blood Mother tests everything you've learned. Pattern recognition, timing, resource management. There's no shortcut — you need to survive all three phases.

Tip: Use Ghostwalk Talisman for phase 3. The extra dodge charge is the difference between a clean kill and a trip back to the checkpoint.

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Achievements — Full List (38 Total)

Rubinite has 38 Steam achievements. Some are progression-based, others challenge you to master specific mechanics.

Story Achievements

Defeat key bosses to unlock these. No specific tricks — just beat the boss.

Challenge Achievements

These require specific conditions during boss fights.

Secret Achievements

Five hidden achievements tied to environmental secrets and optional bosses. One involves finding a hidden room in the Catacombs. Another requires backtracking to an early arena after a mid-game upgrade.

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System Requirements (Steam)

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Developer Background

Cup Dog Games is a small indie studio that previously released several smaller titles on Steam. Rubinite is their most ambitious project — a focused, no-filler boss rush that strips away everything except the fights. The studio worked with GameWorks Ventures on development.

The game was shown at several Steam Next Fest events where its demo earned Very Positive reviews, building anticipation for the full July 2026 launch.

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Comparison With Similar Games

If you liked Furi but wished it had a stronger visual identity and a crafting system, Rubinite hits that spot. It's shorter than Death's Door but more focused — no puzzles, no overworld, just fights.

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Quick Reference Card

• Game: Rubinite
• Developer: Cup Dog Games
• Release: July 22, 2026
• Price: $17.99 (10% launch discount)
• Platforms: Windows, Mac
• Players: 1
• Steam Rating: Very Positive (285/321)
• Total Achievements: 38
• Bosses: 18
• Estimated Playtime: 4-6 hours