🧡 Welcome to Oneiros (Patreon)

We’re a bold indie team turning the world’s smartest game into a mix of mental stimulation, addictive dopamine, and seductive pleasure.

We’re currently developing Check-Mate | The world’s #1 NSFW Chess experience, designed to stimulate both your mind and your deepest desires.

Ok, this might sound a bit crazy, but stick with me. Beyond video games, we’re deeply passionate about neuroscience, especially on how our brain’s pleasure circuits work.

Studies show that mastering strategy games like chess strengthens memory, boosts problem-solving skills, and stimulates cognitive growth. Every calculated move and earned victory triggers the brain’s dopamine pathways, the same reward circuits linked to learning, achievement, and the thrill of winning.

So, we’ve decided to take this natural cognitive high and amplify it much further by pairing it with striking, seductive visuals and story-driven intimacy!

This addictive feedback loop between achievement and desire stimulated us so much… that we decided to dedicate ourselves to creating experiences like this for everyone to enjoy.

On Caelor, a world forged in blood and war, kings once waged endless battles — so brutal they nearly wiped out the entire male population… but they were merely pawns, controlled by a dark mind known as Ares.

When a mysterious beauty named Caïssa brought him a game — a game so deep, its moves outnumber the stars — Ares abandoned war… and turned Chess into the law of the realms.

But Ares’ obsession with power twisted into tyranny.He locked Caïssa away, forcing her to serve his ambition — to craft new strategies, to make him unstoppable.

Yet, she was no one’s pawn. Quietly, she began carving an ebony chessboard… its elegant pieces honed to deadly points.

When the day came, she handed the gift to Ares and challenged him to a game.And as he bowed his head in rage at defeat…She stuck the King piece straight through his throat, ending his reign in a single, lethal move.

Before his final breath, Ares cursed her and her eight disciples with a slow, growing hunger for power and conquest. Now, their corruption threatens to plunge Caelor back into chaos.

*Check-Mate has a rich storyline with narration in the style of a Visual Novel.

There’s only one way to break the curse: defeat Caïssa on the ebony chessboard, in a true match… a challenge no mortal mind has ever overcome.

Across time and worlds, the board has chosen you.The only one who can face Caïssa, free her soul… and decide the fate of Caelor.

♟️ The “Check-Mate” variant

Long ago, enchanted by Caïssa’s game creation, Ares surrounded himself with the eight most brilliant and gorgeous nymphs from across the realms.

His thirst for power and pleasure inspired a twist on the rules.He called it “Check-Mate.”

In this variant, captured pieces don’t just shift the battle in your favor — they strip your opponent of more than just points.

Each match features a four-stage undressing system. Your opponent’s sprite changes at 4, 10, and 16 capture points - giving players an early tease, a smooth progression, and full nudity by the late game or after major captures like the queen.

Every victory then ends with a special fullscreen H-scene sequence (4 renders), bringing the match to its climax.

In Caelor, Check-Mate isn’t just a game.It’s the law… a tradition accepted and respected by all.

*In-game screenshot of the UI — some elements still being changed.

♟️ Challenge designed for every player

Whether you’re an experienced player or a complete chess beginner, we’ve built the game with an adaptive AI that dynamically adjusts to your skill level, ensuring a perfect balance between challenge and fun.

Each character you face also brings unique playstyles and strategies, making each opponent truly unique.

To make the experience even more dynamic, we added handy consumable spells that keep the game flowing, so the pace never drops and every match stays smooth and engaging.

1. Demo Release

As of July 20, 2025, we’re hard at work on our very first Demo.

This early first release will include:

Full introduction to the story: your arrival on Caelor, backstory lore, and your first encounters with three of the game’s main girls + scenes.

You’ll get to play your very first match against Vera, your sexy adventure companion.

A short, interactive tutorial, perfect also for anyone who has never played chess before.

2. Campaign Development + Sprites Animation

After the first Demo release, we’ll begin rolling out the rest of the story in chapters, each set within one of Caelor’s eight realms. Alongside these main episodes, we’ll also create special side-stories and exclusive backstories, available as a thank-you to our amazing supporters on Patreon. 🧡

Our goal is to deliver new updates every 14 days; however, this timeline will depend on the level of support we receive. The more you help us grow, the more content we can bring to the game.

3. Dojo Mode (Academy)

Chess is a deep game, rich with tactics and strategies. To help players dive into this side of the experience, we’re developing a dedicated mode focused on learning, with short interactive lessons, tactical challenges, and, of course, spicy trials to keep things exciting.

4. Sky Pillar

The Sky Pillar is a mysterious, towering structure that offers a unique, endless gameplay mode. Here, players will face a constantly changing series of puzzles: positions to solve, scenarios to escape, and challenges to survive. With limited lives and consumable items, you’ll need to endure as long as possible while uncovering the secrets of the tower and its guardians.

5. Multiplayer Mode

Chess has always been more thrilling when played together. As the ultimate step in our development journey for Check-Mate, we’re bringing players together from all around the world. In Multiplayer Mode, you’ll be able to challenge others, test everything you’ve learned, unlock unique events, and climb a global ranking filled with rewards and surprises.

✦ AI Usage Disclaimer ✦

Read our AI Usage Disclaimer by clicking here

✦ Our Commitment to You ✦

At Oneiros Team, there’s one trait we all share, and it's that we pour passion into everything we create. We care deeply about quality, attention to detail, and, above all, delivering a memorable experience for every player.

By supporting us on Patreon, you help us dedicate much more time and resources to the game, bringing us closer to making our vision a reality and pushing this project to its full potential.

Join our Discord community to share your thoughts, your feedback, and your experience with us.

Thank you for being part of this journey.Enjoy the game!

– The Oneiros Team ♟️

©2025 Check-Mate | Oneiros Games - All rights reserved