July 5, 2026
Love, logic, and a broken sphinx
Dungeon Proof Crawler: learn how to write proofs with RPG
A fantasy proof game has players hooked, confused, and yelling about bugged sphinxes
TLDR: Dungeon Proof Crawler turns learning proof-writing into a fantasy quest to recover a stolen wedding ring, and players love the idea. But the comments are split between praise for its beginner-friendly charm and frustration over bugged sphinxes and a title that confused people expecting something else.
A browser game called Dungeon Proof Crawler is pitching something gloriously weird: learn formal proofs by fighting monsters in a dungeon while racing to recover a stolen wedding ring before sunrise. And honestly? The crowd seems torn between "this is brilliant" and "why is the sphinx ruining my life?" That tension is exactly what makes the reaction so juicy.
On the praise side, players sounded genuinely charmed. One commenter said it was surprisingly interesting even for someone who knows nothing about proofs, shouting out the slow learning curve and helpful menu. Another basically posted a mini survival guide after reverse-engineering the first riddles, which is the most internet thing possible: if the tutorial is fuzzy, the comments become the tutorial. And the pure enthusiasm was there too, with a simple but powerful verdict: "Such a great idea!"
But then came the dungeon drama. One player reported that key sphinx enemies on a certain starting setup simply would not load, causing a soft-lock and eventually an error that blocked progress entirely. That turned the comments from dreamy fantasy vibes into bug-hunt panic. And for comic relief, someone confessed they clicked expecting the old-school RPG programming language, not a role-playing game, then demanded the title needed "an RPG" for clarity. So yes: the game won people over, confused them, taught them, and trapped some of them underground with broken monsters. In other words, the comments had everything.
Key Points
- •Dungeon Proof Crawler is framed around retrieving a stolen wedding ring from a demon before sunrise.
- •The game’s setting is an underworld through which the player descends in pursuit of the demon.
- •Each monster functions as a proof challenge, and defeating monsters requires completing unfinished proofs.
- •The project is explicitly described as a love letter to formal proof.
- •The game is powered by the Algae kernel and compiled to WebAssembly.