Build to Survive the Tsunami Codes

Launch the game and click the Settings icon on the top-left of the screen, just below the Health and XP bars.

Scroll to the bottom of the Settings panel and find the Codes section.

Paste your code into the input box. Codes are case-sensitive, so use the Copy button in the table above to avoid typos.

Hit Redeem - your reward should drop into your inventory immediately.