HANKO

Solo indie dev here, looking for active Android testers for a 14-day closed testing phase.

HANKO is a quiet Japanese seal-carving logic puzzle, and the idea runs backward on purpose: the parts you do NOT carve are the parts that print. Tap cells to carve grooves into a seal face; what remains raised takes vermilion ink and stamps onto the washi paper below, inside one to four fixed guides. A cell covered by one guide prints light red, and where prints from two guides overlap the ink doubles into a deep dark red, so your print must match the target exactly — blank, light, or dark. After each press you are told only how many cells came out too dark and how many too light; no cell is pointed out for you. Carving is one-way, so plan before you cut. 200 hand-checked stages, a daily seal with a streak, a stamp book, and 12 languages.

• Keep installed for the full 14 days
• Launch every couple of days (a few times is enough)
• A minute or two of play per session is plenty

ℹ️ Tip — all three steps below are required:

• Step 1 — Join the group: even if you see “no permission to view content”, there’s a “Join group” button on that page — tap it to join.
• Step 2 — Become a tester (opt-in): on the opt-in page, tap to join the test. Becoming a tester alone does not install the app.
• Step 3 — Download & play: open the download page, install the app, launch it and play a little — without this, your testing doesn’t count.
• Use the same Google account for all steps.
• If Step 2 or 3 shows “App not available”, wait a few hours after joining and try again.