Security features: short-lived numeric code only for local pairing; long-lived token never exposed to user; ability to revoke tokens per device.
The game saves registration data in %AppData%\ButterflyEscape . Delete the license.cache file. When you restart the game, re-enter your original key. Often, the key is valid, but the cache is corrupted. butterfly escape registration key better
Let’s return to the keyword:
Before buying a new key, try to recover your old one. Security features: short-lived numeric code only for local
Search for the "Butterfly Escape Widescreen Fix" on fan forums like GOG Forums or PCGamingWiki . This fan-made patch: long-lived token never exposed to user
You don’t need a better key. You need a valid key from a trusted source.