About this game

New Game Mode: Mindbug Ascension

Ascension: Roguelike Progression Mode

Introducing Ascension, a new roguelike mode where your decisions and deck choices carry over as you progress. Build a unique path, discover powerful creatures, and challenge increasingly difficult encounters in a thrilling progression experience. With randomized encounters, evolving strategies, and permanent rewards, Ascension adds a fresh layer of depth to Mindbug for both new and veteran players.

About the Game

Unique Card Battler

Mindbug takes the excitement of strategy card games and distills it into the most streamlined, skill-based dueling experience in the multiverse. Quick to pick up, endlessly strategic, and fair to all players. There’s no endless deck-construction, no random booster packs, and no complicated rules to memorize. Every decision matters, and every match feels fresh and unpredictable.

Experience Meets Innovation

Co-designed by Richard Garfield (Creator of Magic: The Gathering), Mindbug combines decades of TCG expertise with a groundbreaking, original game mechanic. The Mindbugs allow you to steal your opponent’s creature play twice per game — creating tense, mind-bending duels that reward strategy, timing, and skill.

Crazy Card Abilities

Mindbug is simple to learn but deep to master. Every card is powerful in the right situation, and every play can turn the game on its head. You’ll find yourself making meaningful choices from turn to turn, balancing risk, bluffing, and clever combos. The game is short, but each decision is super impactful.

Fast and Intense Matches

Play a complete game in under 5 minutes. Mindbug delivers rapid-fire duels that are easy to teach, fast to set up, and endlessly replayable. Perfect for a quick match with friends, a competitive showdown, or just a few minutes of strategic fun.

Infinite Strategies

Even though Mindbug is extremely easy to learn, the game will keep surprising you with new and exciting challenges and combos. The unique Mindbug mechanic allows you to control your opponents’ creatures and leads to unique decision-making that requires even veteran card game players to adjust their traditional playstyle.

What are you waiting for earthling? Show your incredible skill and turn your opponents’ strongest creatures into your own advantage! Play Mindbug Online Now!

Latest news

• Patch Notes·4 Mar 2026Official

  Patch Note 2.5.0: Ascension mode going PvE

  Hello earthlings, We are addressing one of the major issue of the Ascension mode with this update: Matchmaking. We heard complains on how hard and how frustrating it could be to play Ascension mode against other players, while still enjoying the game mode itself. It was possible to face a player with some really strong deck while you was still trying to build yours. That's why we decided that the mode should now be playable in PvE (Player versus Environment), where you will play against different bosses piloted by AI, each of them would bring a unique deck and play style. The mode itself is playing like before, build a deck, upgrade your cards and defeats bosses using your overpowered deck. Competitive enviromnent is not completely gone. We was speaking early on about ascension tournaments, and that's something we would like to push forward. Once you reach 6 wins in ascension, you'll be able to save your deck, up to 3 of them, that you'll be able to use to fight against your friends or other players in online tournament. The mode is still in beta, meaning everything can still change until we do a proper release, and that bugs can be expected. Join our discord to know more! We hope you'd like it, feedbacks are welcomed! The Kissaki Team
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• Announcements·23 Dec 2025Official

  New Card Set - Mindbug x King of Tokyo

  Mindbug x King of Tokyo is officially out now This brand-new stand-alone release combines the clever Mindbug mechanic with the iconic monsters and energy-fueled chaos of King of Tokyo. Roll the special die, unleash wild attack effects, and spend energy to gain powerful cards that can completely turn the tide of battle.Whether you’re new to Mindbug or a seasoned veteran, this crossover offers fast, strategic duels packed with surprises. The new set is playable for free in the current Duel Queue. If you buy the set, you can also solve new quests and collect the King of Tokyo Monsters for your collection to use them in the Ascension Mode. Jump in, choose your monster, and fight for control of Tokyo! 👉 Available now!
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• Announcements·10 Oct 2025Official

  New Roguelike Game Mode: Mindbug Ascension

  Hello Adventurers!We’ve got big news: a major new update is arriving on October 10th, 2025, bringing the most customizable and replayable experience Mindbug Online has ever seen. The Ascension Mode!What is Mindbug Ascension?Mindbug has always focused on the best parts of trading card games: exciting duels, clever creature plays, and mind-bending strategies. Without a lot of the clutter TCGs typically come with. Ascension takes that vision further.Deck-building is one of the most beloved aspects of TCGs, but it can be intimidating for new players. Ascension bridges that gap. Instead of building your deck all at once, you craft it step by step between matches, shaping a deck that is truly yours. Every run becomes a journey of discovery, culminating in a deck that evolves with you.Progression and Your CollectionAscension introduces a long-awaited progression system: unlock new cards, powers, and upgrade tokens as you play. New players will grow their collection gradually, while veterans will enjoy continual discovery. And your collection won’t just matter in Ascension. Future updates will expand its role in Colosseum Events and Tournaments.The classic Duel mode stays intact, delivering the same fast, fair, strategic experience independent of your collection.Other Major UpdatesRotation Queue: A single live Duel Queue featuring rotating card sets keeps the meta fresh and exciting. Free for all players.Asynchronous Play: Take your time! Up to two days per move lets you duel on your schedule, anywhere, anytime. The Coliseum (Returning Soon!): Fan-favorite events return with special twists, experimental rules, and chaotic fun. These events will temporarily replace the Duel Queue for a focused, active experience.Get Ready to AscendAscension launches as an open beta for everyone! At launch, dive in with First Contact cards. Owners of the Battlefruit Kingdom Set will also gain access to those Mindbugs, powers, and cards.More Mindbugs, sets, and Upgrade Tokens are on the way—th...
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• Patch Notes·28 Sept 2025Official

  Patch Notes: v1.14.4

  - Fix issue encountered when a new player is getting through the tutorial without an account - Fix issue with some card effects still ongoing after being defeated
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• Patch Notes·7 Sept 2025Official

  Patch notes 1.14.2

  - Fix Ai surrendering - Fix visual issues in menu - Achievements can now be unlocked during tournament games - Fix puzzles allowing to go down to 0 lifes - Fix login screen visual for new players
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