
Free
About
Upkeep Engine is a deck builder and playtester for trading card game players. Build a deck, shuffle up, and find out how it really plays before game night.
PLAY THE COMPUTER
• A computer opponent that plays its lands, casts its spells, attacks and blocks with intent
• Real rules handling: combat, triggers, counters, commander damage, poison, tokens and more
• Respond to spells, choose modes, target cards and see every move in the game log
• Mulligan, draw and test your opening hands as many times as you like
BUILD AND TUNE DECKS
• Import a decklist in seconds, or build from scratch with full card search
• Commander and Standard formats, with commander and secondary commander support
• Deck notes with tappable card mentions — type @ to add a card by picture or by what it does
• Browse precons and community decks for inspiration, and copy any shared list
PLAY YOUR FRIENDS
• Invite friends and play at your own pace — turns are saved between sessions
• Phone notifications when it's your move, when you're invited, or when someone adds you
• Friends list, @usernames, shareable deck links
BUILT FOR PLAYERS
• Report a card that isn't working right from inside the game — fixes ship fast
• No ads
Upkeep Engine is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card data and images courtesy of Scryfall.
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What's New in Upkeep Engine
2.133921.1
October 27, 2026






