Project: Vaccine A

Computer-themed tower defense with block building and regular boss battles

Birb Games · Released Jul 21, 2021

Reviews: Very Positive; 88% of 57
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 months ago; Aug 13, 2026
Minimum PC: DirectX 9 GPU; 0.1 GB RAM · 0.2 GB disk; Full requirements

What is Project: Vaccine A?

A free 2D tower defense game about protecting a computer’s CPU from malware. You build firewalls and utility blocks, construct and upgrade vaccine defenses, and face a boss every six waves.

For you if...

+you like testing defense strategies in a configurable creative mode

Not for you if...

−you want multiplayer rather than single-player base defense

What players say

88% of 57 reviews are positive

Players praise the perk progression and visuals. A recent negative review criticizes a steep difficulty spike after a boss.

Screenshots and trailer

Project: Vaccine A system requirements

Minimum: DirectX 9 GPU, 0.1 GB RAM, 0.2 GB of disk space.

As published by the developer.

Can my PC run Project: Vaccine A?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS: Windows 10
Processor: Intel Core i5
Graphics: DirectX 9 compatible graphics card
Memory: 100 MB RAM
Storage: 200 MB available space

Does Project: Vaccine A have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Project: Vaccine A run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 41
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Korean, Russian, Japanese, Simplified Chinese.

Does Project: Vaccine A use AI-generated content?

Yes. The developers disclose AI-generated content on the game's Steam page:

*This game used AI for Soundtracks. AIVA: 2019 ~ 2024 Suno: 2024 ~

The statement mentions: Music & sound

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 28, 2026. How to filter AI games on Steam