Thanks so much for the detailed report, DanielLC — this is exactly the kind of feedback that helps.
Both issues are fixed in the next build:
- Escape now takes you back to the menu. Press it once to pause, again to return to the menu (it also backs out of the settings screen).
- Your shards are now saved during the run — automatically every ~20 seconds, and again whenever you close or switch away from the tab. So even if you quit in the middle, you keep everything you earned.
On being "basically unkillable": that's a known issue I've been reworking — enemy damage (not just HP) now scales with an adaptive difficulty clock, so late-game runs should stay dangerous instead of turning you immortal. Would love to hear how it feels once the update is live. Thanks for playing! 🚀