Wunder: The Double-Sided Deckbuilder game cover

Wunder: The Double-Sided Deckbuilder CD Key

A roguelike deckbuilder where coins are drawn, arranged, and flipped to cross the Rivers of Hades. Draw 7 coins, flip them all (heads or tails) in battles against the Ferryman, with luck and strategy shaping outcomes. Upgrade coins, gain talismans, explore 3 Endless modes and 10+ classes.
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Current Lowest Price

7.99$
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Release Date

04 May, 2026

Publisher/Developer

bumbleborn, BumbleMumble

Reviews

Steam: 100.00% positive (28/28)
Metacritic: -

Wunder: The Double-Sided Deckbuilder Steam Price History Chart

Current Steam price: 7.99$
Lowest Steam price ever: 5.59$ — 2026-10-08
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Wunder: The Double-Sided Deckbuilder description

Wunder: The Double-Sided Deckbuilder is a roguelike deckbuilding game built around luck and strategy. In this mythic duel, every card is a coin that can land heads or tails, each outcome carrying a consequence as old as myth: a boon from the dead or a swift pull into the dark waters. Your mission is to cross the Rivers of Hades by gambling with fate itself. You start by drawing seven coins from your deck, then you can rearrange them and flip all of them at once. The order matters, because coins can trigger re-flips with each other, turning a risky sequence into a chain reaction of luck or a cascade of misfortune. Some runs end with the Ferryman tallying your score; others slip deeper into the depths.

Inspired by Balatro and Slay the Spire, Wunder drops you into a sequence of fateful trials against the Ferryman. Journey through the Rivers of the Underworld—from Styx to Phlegethon—and each crossing presents a different test that shapes your deck and your fate. Cross to the other side and test your luck in three Endless Modes that loop and escalate, offering fresh challenges after every run. It’s a game about balancing risk and reward, where a well-timed flip can turn the tide and a single misstep can pull you under.

Build a strategy around unique Coins and Talismans. Every coin is rooted in figures from Greek mythology, each bringing its own risk/reward mechanics that can synergize with or disrupt your plans. Upgrade the heads, tails, or both sides of a coin to tune its power, or concentrate everything on one coin and pray it lands heads enough times to push you past the gauntlet. The coin system rewards thoughtful deck construction and dynamic adaptation, keeping you engaged as fortune shifts from breath to breath.

More than a dozen classes empower your play with game-changing abilities. Each class introduces new dynamics, scales through ascending difficulty, and offers completion rewards that unlock tools for future runs. Wunder rewards experimentation, clever setup, and nerve under pressure, inviting you to craft a personal playstyle that evolves with every crossing you attempt and every verdict from the Ferryman.

Whether you chase a carefully laid plan or lean into the chaos of coin-flips, Wunder delivers a tense, mythic deckbuilding experience. It blends strategy with chance in a compact, looping journey across the Underworld, where every choice matters and every flip could tip the balance between glory and the depths.