The Killing Antidote

Third-person zombie shooter with puzzles, exploration, and character customization

MetalStar Studio · Released Oct 5, 2024 · Early Access

Reviews: Very Positive; 89% of 7,837
Recent reviews: Very Positive; 88% of 123 in 30 days
Playing now: 193; right now
Steam Deck: Playable
Last update: 6 months ago; Mar 12, 2026

Free demo available, 5 playing it now: get the demo.

What is The Killing Antidote?

This single-player Early Access action game takes place in a future devastated by infection and mutation. As journalist Jodi, you explore a facility while searching for an antidote, fighting with guns, bows, and melee weapons, using stealth, solving machinery puzzles, and collecting randomized loot across story chapters.

For you if...

+you enjoy searching large maps for hidden weapons and outfits
+you want combat mixing firearms, melee weapons, and stealth
+you like puzzles alongside post-apocalyptic exploration

Not for you if...

−you want a complete story instead of Early Access chapters
−you dislike revealing costumes and detailed appearance customization
−you dislike sudden ambushes and dense zombie waves

What players say

89% of 7,837 reviews are positive · 88% of 123 in the last 30 days

Players most often praise the responsive gunplay and Chapter 1's atmosphere and level design. The dominant complaint since Chapter 2's release concerns bullet-sponge enemies, restrictive gas-mask sections, and confusing layouts that players find less balanced and more frustrating than Chapter 1.

Screenshots and trailer

The Killing Antidote system requirements

As published by the developer.

Minimum

OS: Windows10
Processor: i5
Graphics: GTX 960
Memory: 4 GB RAM
Storage: 6 GB available space
DirectX: Version 11

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 18
Steam features: Workshop, Cloud saves, Family Sharing

Steam Deck: Playable

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
Default configuration is not performant
External controllers are not supported for the primary player

Multiplayer and co-op

Single-player

Languages

Full audio: Simplified Chinese. Text only: English, Russian, Japanese, Traditional Chinese, Portuguese - Brazil, Spanish - Latin America, Korean, French, German, Ukrainian, Indonesian, Polish, Persian, Italian, Spanish - Spain, Hungarian, Portuguese - Portugal, Vietnamese, Arabic.