InkTower is a single-player idle tower defense drawn in a notebook. It plays fine offline; the only thing that needs a connection is the optional rewarded ads.
My progress disappeared. Progress is stored on your device. Deleting the app deletes the save; reinstalling starts fresh. Cloud save is planned.
The game earns while closed? Yes — coins accrue offline based on your best wave, capped by your Lab research.
Do I have to watch ads? No. Rewarded videos are always optional — they only speed things up (x3 speed, doubled offline coins, a second chance). Nothing is locked behind them.
Found a bug or want a feature? Email us — we read everything.