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Blast through space as Matty Matter — a hand-drawn roguelite shooter with original jazz, enemies that attack to the beat, and the entire periodic table to explore. Learn science. Feel the rhythm. Save your friends.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Try this game before buying.
Something's very wrong out there. Crashed ships. Escaped convicts. Lost vacationers. And somewhere in the cosmos, Matty Matter's friends are waiting to be rescued.
Feel the rhythm, save the universe. Enemies attack to an original jazz soundtrack — hand-drawn, hand-animated, and choreographed to the beat. It looks unlike anything else on your Steam library shelf.
A roguelite with thousands of ways to play. Die, keep your points, rebuild Matty differently every run. Three missions. Three unique space environments. Three bosses who will absolutely ruin your day the first time you meet them.
Science that actually sticks. Travel through the periodic table of elements as you progress. Every element unlocks new territory, new enemies, and real facts worth knowing. The only shooter where you finish smarter than you started.
What's in the box
Hand-drawn art and animation throughout
Original jazz soundtrack with beat-synced enemies
Roguelite upgrades — thousands of combinations
Randomly generated levels, never the same run twice
3 missions with unique environments and bosses
Full in-game elements database
Full voice acting
Mouse and controller support
Lowest tracked price: CA$6.49 (Jul 7, 2026) · current best: CA$6.49.
100% positive reviews all-time.
Right now the cheapest offer for What's the Matter? is CA$6.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for What's the Matter? is CA$6.49 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when What's the Matter? drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
