About This Demo

An evil AI has ascended to godlike intelligence, distorting time and space to endlessly replicate itself. Trapped on the Singularity Island, everyone wears the same mysterious helmet. You are one of its conscious clones, trying to escape.

But escape is a lie. The loop always resets.

Build your deck. Design your mechanism. Fight your way through the loop.

Break the cycle - if you can.

Deckanism: Singularity Island is a roguelike deckbuilder meets auto-battler, where you do not just build a deck - you build mechanisms.

• Preparation phase: Spend tokens in a rotating three-slot shop, which draws cards from the top of your deck. Pick what fits your plan. Arrange your cards across up to six board positions.

• Battle phase: Cards activate one by one, automatically. Your first slot, then the opponent’s - until the round concludes. Every placement matters: not only do you need to consider what your cards do, but how each one interacts with the ones placed by your opponent.

  You can see your opponent’s setup before battle begins, so it’s all about building the right response. Where you place each card and in what order can be the difference between winning and getting wiped.

Your deck isn’t just a list of cards - it’s a working mechanism. Each card has effects that trigger, chain, or boost others, and how well they flow together can decide the outcome of an entire loop. The full game will include 150+ unique items and 50+ inspirations. Every encounter gives you new pieces to add, swap, or upgrade. As you progress through the map, each stage offers opportunities to strengthen your deck, adjust your strategy, and prepare for what’s ahead. Inspirations add more layers, enabling wild interactions, broken combos, or unexpected synergy chains.

Every run is different. Every board is your experiment.

Push your mechanism to its limits.

Watch the numbers explode as your engine kicks into overdrive!

Each run (called a loop) resets your deck, your inspirations, and everything you have built. You will start again with a basic class deck, face a new series of encounters, and discover fresh synergies based on what the island offers this time.

But not everything resets. In the full game: As you play, you’ll unlock new classes, expand your card discovery pool, and earn permanent upgrades that carry across loops. The customization sets you select at the start of each loop also grant you new inspirations, providing unique bonuses and synergies that can dramatically influence your approach. Every failed attempt brings new tools for the next one - and one day, the perfect build to break the cycle.

Deckanism: Singularity Island is currently in development.

Demo version includes the Warrior class, the first act (Beach), 50+ items and 20 inspirations.

We are updating the game regularly and adding new features and content. Join our community, test early builds and help us build something truly special!

Here are some planned features for the future:

• Crafting: You will be able to alter your items by attaching shards with trigger conditions and ability effects.

• Modding Support: You will be able to tweak and create existing item cards, mechanics and inspirations.

• Battle Anomalies: Battle anomalies will drastically affect how each battle will be played out. Some will restrict you to using only melee items or will scramble the item card costs, while others will change the turn structure completely.

We are inviting players, designers and curious minds to follow the development of Deckanism: Singularity Island. Give us feedback and help us fine-tune the game!

• Join our Discord!

• Wishlist the game to follow our journey!

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some in-game backgrounds were painted by hand at first, then extended with generative AI. Those assets are placeholders.