Support for iOS and Android · Version 2.0
Email playindex@foxmail.com with your device model, operating-system version, game version and a description of the issue. A screenshot helps us investigate. Do not include passwords or payment details.
Clear mission 20 to unlock the first endless threat level. Higher levels unlock after missions 40, 60, 80 and 100. Choose a free upgrade after each wave. Rewards from completed waves are banked during the run.
Core gameplay works offline. Progress is stored on your device; reinstalling can remove it. There is no account or cloud-save sign-in.
Ads require internet access and availability varies. Rewarded ads grant rewards after confirmed completion. You can revisit available consent choices in the game's Settings → Privacy Choices.