Mindbug Online

Strategy· Card Battler· Free to Play· Turn-Based Tactics

Released Nov 2024

Mindbug redefines the card-battler genre, focusing on pure strategy and fast-paced excitement from the very first turn. Outsmart opponents with the groundbreaking Mindbug mechanic and rise through the new roguelike mode, discovering fresh powers, creatures, and combos each run.

74% positive · 303 reviews

Not yet

Released, ongoing live service game

High confidence

Live Service

Not yet

Released, ongoing live service game

High confidence

Live Service

Where to get it

Free on Steam

Steam Free

Evaluation

Mindbug Online launched on November 13, 2024 as a free-to-play card battler and has been receiving a continuous stream of updates ever since. The developer's launch post explicitly framed this as "the beginning of a long-term adventure" and committed to new card sets every few months, new game modes, and ongoing events. Since launch, the team has delivered on those promises at a steady pace: the Colosseum weekly event mode went live in December 2024, the Battlefruit Kingdom card set launched on April 25, 2025, the Ascension roguelike mode launched in October 2025, and the Mindbug x King of Tokyo crossover card set shipped on December 23, 2025. Feature patches have continued into 2026, with the most recent on March 4, 2026, overhauling Ascension mode with PvE bosses and teasing upcoming tournaments. The game's structure is built around ongoing content rotation: weekly Colosseum events with fresh rules and card pools, seasonal card sets, and a monetized collection system where players purchase sets for access to premium features. The developer explicitly describes Colosseum as a "constantly shifting meta" that evolves weekly, and the short description on the store highlights "discovering fresh powers, creatures, and combos each run" in the roguelike mode. This is a game designed to receive content indefinitely — it is never meant to be "done."

Evidence

Patch 2.5.0 reworks Ascension mode to PvE and teases upcoming tournament features for saved decks, showing active ongoing development as of March 2026.

news post · Mar 4, 2026 source development ongoing

high

Mindbug x King of Tokyo crossover card set launched, introducing new cards, a special die mechanic, and free-to-play duel access with premium collection options.

news post · Dec 23, 2025 source content shipped

high

Media

Details

Developer

Kissaki Studios GmbH

Publisher

Kissaki Studios GmbH

Achievements

Platform

Windows, Linux

Controller

—

Steam Deck

Playable

Players

Single-player · Multiplayer · PvP

Card Battler Strategy Free to Play Turn-Based Tactics Deckbuilding Replay Value Choices Matter Card Game Turn-Based Strategy Roguelite Turn-Based Fantasy Tactical Board Game Roguelike

About this 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!