Killer: Infected One of Us — Steam capsule
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Killer: Infected One of Us Free Download

by Conglomerate 5

Windows · Jan 31, 2021

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is Killer: Infected One of Us worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Groups of 4-10 players who enjoy social deduction and hidden roles
  • Players who want online first-person gameplay centered on deception and voting
  • Fans of outbreak-themed multiplayer games with quests and secret areas

Skip it if you…

Saves you a refund
  • Players seeking a solo game or a larger-scale multiplayer format than 4-10 participants
  • Players looking for a campaign with varied character progression rather than repeated infected-versus-healthy rounds
  • Players who do not want voice or text communication to be part of the group experience

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on Killer: Infected One of Us

The store presentation gives equal weight to atmosphere-focused items such as visuals and soundtrack and to the core role system. The playable scope is more specific: a 4-10-player online first-person game built around infection, concealment, voting, and treatment decisions.

What is Killer: Infected One of Us?

Set in 2040, this online first-person game assigns 4-10 players to an expedition studying unknown organisms at a research station.

One or more participants become infected with Virus-40. Infected players try to spread the virus, conceal their status, and blend into the group. Healthy players must identify the infected, use an antidote, demonstrate that they are healthy, and keep the station staffed while surviving the outbreak. Giving the antidote to a healthy player has a fatal result. The game includes quests, secret areas, anonymous voting, voice and text communication, a bonus system, and a soundtrack. Players are divided into infected and healthy roles, creating a social deduction structure around suspicion, deception, and survival.

How Killer: Infected One of Us plays

01Two player roles
Infected participants spread the virus and hide their identity, while healthy participants investigate and administer treatment.
02Anonymous voting
Players can use concealed voting as part of the process for identifying suspected infected participants.
03Voice and text chat
Communication supports discussion among expedition members during the outbreak.
04Antidote risk
Using the antidote on a healthy participant causes a fatal outcome.
05Station survival
Healthy players must maintain the station with enough staff while dealing with the infection.

Killer: Infected One of Us compared to similar games

Peekaboo also divides players into opposing roles in an online multiplayer setting, but its structure centers on props hiding as objects and hunters searching for them. Roadside Research supports solo or up to 4 players and uses human tasks at a gas station as cover, while Killer: Infected One of Us uses infection, voting, and antidote decisions for 4-10 players.

Killer: Infected One of Us: platforms & release

Is Killer: Infected One of Us worth it?

It is worth it if: groups of 4-10 players who enjoy social deduction and hidden roles. Skip it if: players seeking a solo game or a larger-scale multiplayer format than 4-10 participants.

Where can I download Killer: Infected One of Us?

Use the Download Now button on this page: it opens Killer: Infected One of Us's store page, where you can choose how to get it.

What platforms is Killer: Infected One of Us on?

Windows only.

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