In this demo for Athanasia, explore a mysterious facility and use everything you have to survive. Use an arsenal of equipment and your wits against time traveling predators from the past.
About Athanasia Demo
Athanasia is an immersive horror FPS set in an abandoned South American research facility overrun with prehistoric predators. Inspired by classics like System Shock and Dino Crisis, Athanasia challenges players to outthink and outmanoeuvre the brute strength of your ancient adversaries.
You are Carmen Flores, researcher and explorer, called to investigate a mysterious facility in South America where reports of disappearances and strange phenomena abound.
Within this winding maze of secrets and science lies a terrible truth alongside ancestral nightmares that have plagued us for longer than we have been human.
How will you survive?
EXPLORATION
Genres and features
ActionAdventureIndieSingle-player
Common questions
Is it really free?
Yes. Athanasia Demo is free right now on Steam, with nothing to pay.
Is this the full game?
No. A demo is a portion of Athanasia Demo — usually the opening section — published so you can try it. It is free permanently, but it is not the complete game.
Where do I claim it?
On the official Steam page. We link straight there — we never host game files or act as a middleman.
More demos on Steam
4| Time left | Cover | Title | Type | Store | Was | Action |
|---|---|---|---|---|---|---|
| Ends 31 December 2026 at 23:59 UTC |
|
DAVE THE DIVER - Godzilla Content Pack | DLC | Steam | — | Claim DAVE THE DIVER - Godzilla Content Pack on Steam, opens a new tab |
| No deadline | JAYWALK: An Endless Arcade Hopper Game | Free to play | Steam | — | Claim JAYWALK: An Endless Arcade Hopper Game on Steam, opens a new tab | |
| No deadline | Grid Tactics: Duel | Free to play | Steam | — | Claim Grid Tactics: Duel on Steam, opens a new tab | |
| No deadline |
|
Explosive Odds - Supporter Pack | DLC | Steam | — | Claim Explosive Odds - Supporter Pack on Steam, opens a new tab |