Attack Deck

Content rating
Everyone
50+
Downloads
Content rating
Everyone
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About this game

Attack Deck is an unofficial fan-made companion app for popular tactical tabletop adventures including Gloomhaven, Frosthaven, and Jaws of the Lion. Track your party, manage perks, and draw attack modifier cards with smooth native animations.

FEATURES
• 98 starting and unlockable classes spanning the official Gloomhaven and Frosthaven family of games plus popular fan-made expansions (Crimson Scales, CCUG community classes)
• Perk tracking — toggle perks and your attack modifier deck rebuilds automatically
• Multi-character party support, persisted locally on your device
• Undo last draw — put the card back on top of the deck
• Two shuffle modes — full reshuffle, or shuffle the un-drawn pile only
• Advantage and Disadvantage draw modes
• Bless and Curse card management
• End-of-round shuffle prompt when a Miss or ×2 is drawn
• Haptic feedback (toggleable in Settings)
• Spoiler-safe class picker — unlockable classes hidden behind their code names until you tap to reveal
• Localised in English, German, French, Spanish, and Italian

PRIVACY
Attack Deck collects no data. All character information is stored locally on your device.

UNOFFICIAL FAN TOOL
Gloomhaven and Frosthaven are trademarks of Cephalofair Games. This app is not affiliated with, endorsed by, or sponsored by Cephalofair Games. Perk data adapted from the open-source Gloomhaven Secretariat project. Crimson Scales is a fan expansion by Wolf Brothers Studios; CCUG classes are community-made by their respective creators.
Developed by 30str — 30str.com
Attack modifier deck companion for tactical tabletop fantasy adventures.
Updated on
Jul 23, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

• Draw history — your last few cards now fan out behind the current draw, with values peeking from the corner (blessings and curses included!)
• Shuffling now clears the drawn card, so it's always clear when a new round starts
• "Shuffle un-drawn" gives a quick confirmation buzz and message
• Fixed the MISS card text getting cut off on some devices
• Smoother, more responsive card draws