You've been sent an invite link, but you don't have Sea Hero Quest installed yet.
Let's fix it:
Install or update Sea Hero Quest from your app store:
With the app closed, open your invite link again from wherever you received it. The invite won't come through while the app is still running in the background.
1 Invite
BETA
Valid invites will show a token.
Still having issues?
Read the guide if you want detailed instructions, or reach out via the WhatsApp Community.