Vaccine A

Vaccine A is a game about protecting your CPU from malware. You build firewalls and vaccines to defend your base, using blocks, skills and upgrades.

Defend your base

Interact with characteristic blocks, including Cleaner, which restores HP; Notepad, which generates code files; and Web browser, which shows the full map. You can upgrade vaccines such as Noturn and A'vast. The game has over 200 blocks, skills and upgrades, and you earn experience after each game to unlock and apply more than 60 perks.

Waves and bosses

Boss battles occur every 6 waves. You can use your available tools and vaccines to fight them.

Creative mode

Creative mode lets you adjust every setting to test strategies and skills. You can try firewall spamming, fight a boss without a vaccine tool or make your own mini-game.

Familiar characters

Clippy, Rocky and the Installation wizard appear as NPCs.