Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

🔮

Quantifier Truth Survival

A universal or existential claim over a small finite domain -- one wrong true/false call ends the run.

💀 3 lifeives 🚫 no clock

▶ Log in to play

← Back to the arcade