SumwardDraft numbers.
Play patterns.
Break the math.
Play hands that form a pattern — a pair, a run, a set adding to ten — and each one multiplies your score. Collect relics until the math breaks.
Free to start on iPhone and Android · No ads, ever.
Roguelite deckbuilder
Relics
Chips × mult
How it plays
Build a hand of numbers, find the pattern hiding in it, and watch the score get out of hand.
Sumward is a card game built out of arithmetic. Pick up number cards, play hands that form a pattern — a pair, a run, cards that sum to ten, five cards of one colour — and each pattern multiplies your score. Collect relics between rounds that bend the rules in your favour, and keep stacking them until the math stops making sense. Eight rounds to beat, and with Pro the run keeps going.
- Draft number cards and build a synergy deck
- Pattern-scoring hands: pairs, runs, sum-to-ten, one-colour spectrums
- Relics, enhancements, and an Exchange shop between rounds
The loop
Every run follows one honest loop.
- 01Draft
- 02Play patterns
- 03Score chips × mult
- 04Shop the Exchange
- 05Stack relics
- 06Break round 8
- 07Go infinite with Pro.
What is inside
Inside Sumward.
Patterns are points
Play hands that form pairs, runs, sum-to-ten, or five of one colour. Each pattern scores chips times a multiplier — find the overlap and the numbers explode.
Stack relics until it breaks
Clear a round to reach The Exchange: twenty-two relics, number packs, foil/holo/gild enhancements, and a deck shredder. Build a deck that snowballs out of control.
Bosses that change the rules
Static Field at round 4 takes your swaps; The Auditor at round 8 scores junk hands at zero. A rule change lands every round from the third on, and your deck has to answer the question each one asks.
Then go infinite
Beat eight escalating rounds, and Pro carries the same build past round 8 with room for eight relics. The only ceiling is how hard you can make the math break.
Why it exists
Built for a reason.
Card games that let you build your own engine are hard to put down, and arithmetic is a language everybody already speaks — no new vocabulary to learn before the first good hand.
Made for anyone who likes card games where the pieces combine, enjoys a number puzzle, and wants a run that ends in a satisfyingly ridiculous score.
Inside the app
Real screens from Sumward.
Fair unlocks
Play free. Own the rest when it earns it.
Always free
Start playing today
Free to start on iPhone and Android.
Unlock
Free to start. Go unlimited when you want it.
- Free: ranked Daily, first 5 casual starts, then 3 casual runs a day, full relic pool
- Sumward Full Game Unlock: $4.99 one-time
- StackForge Play Pass: $2.99/mo or $14.99/yr — Pro in every StackForge game
Sumward is free to start — the ranked Daily, your first five casual starts, then three casual runs a day, with the full relic and enhancement pool available from the start. The full unlock removes the daily run cap for unlimited runs and opens Infinite Mode past round 8, the Marathon board, every table theme, and the Ledger: lifetime run stats and a readable history of your builds and results.
Play Pass
One pass, every StackForge game
$2.99 a month or $14.99 a year unlocks Pro in every StackForge game, plus One Good Thing.
Store prices appear in the app in your local currency.
Our promise, in every StackForge game
No ads. Ever.
- No banners
- No videos between levels
- No watching ads for rewards
- No advertising code in any app
Our games pay for themselves with optional unlocks, never with your attention.
We never sell your data.
Not to advertisers, not to data brokers, not to anyone.
We don’t track you.
Nothing in our apps follows you across other apps or websites.
No third-party analytics.
Our games carry no outside analytics, attribution or tracking code.
No cookies. Not even here.
This website sets no cookies at all, and never measures you as an individual.
No account needed.
Every game plays without signing up. An account is optional: it carries the Play Pass between games, and cloud saves in the games that have them.
Pay once, own it.
$4.99 unlocks a game for good. A subscription is only ever an option.
Ready when you are
Play Sumward.
Free to start on iPhone and Android, with no ads, ever.
