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Altarium

Altarium

Altarium is a first-person, asymmetric PVP Co-Op horror game that can be played by 1-5 players together. Players can choose to play as either the victim or the evil character. Get ready, choose your role, shape your destiny, and survive!

Released Oct 21, 2024 Developer Metavision Studio Platforms Windows HorrorMultiplayerAdventureCo-opPsychological Horror
View on Steam ↗ $9.99 (US · as of 2026-05-16)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

54.9%positive71 reviews
Recommended · 5 found this helpful

“Honestly, I believe the game is really good, it just lacks a player base which can be fixed with better marketing. After playing a few rounds with friends, here's my feedback: Pros: - Layout of the game is really good and mimics a lot of popular asymm horror games like Evil Dead…”

— a player, Steam review · 2 hrs played
Recommended · 6 found this helpful

“The gameplay was enjoyable, the graphics were nice, and I had a lot of fun with my friends. You can easily pick it up and play with your friends!”

— a player, Steam review · 1 hrs played
Not recommended · 24 found this helpful

“There are no players, no tutorial, custom games are available but the bot movement is wonky. It doesn't have the nice directional sound system you would expect. Disappointed - because the game lore looks and sounds really good.”

— a player, Steam review · 0 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

24achievements
0.6%median completion
0.6%rarest: Luck or experience?
0.7% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.7% 0% most earned rarest
Almost everyone has
0.7%It's Too Early Yet — Save your friend from Upside Down
0.6%Problem Solver — Disable one of his traps.
0.6%A+++ — Complete the ritual with a 98% success rate.
Rarest badges of honor
0.6%Luck or experience? — Complete the game before Laxar arrives.
0.6%No Place for Fear — Complete a game without decreasing your fear level.
0.6%Immortal — Complete the game before falling into Upside/Down.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Nov 01, 2024
Altarium Update: Server Issue Fix and Game Improvements

Hello players, Our work on Altarium is ongoing. We had to release a quick update to resolve a server-related issue that recently arose. This update also includes improvements in the following areas: T

Oct 28, 2024
Upcoming Updates: New Features and Enhancements on the Way

Hello, players! We’d like to share some thrilling features we’ll be adding to the game in future updates. Our goal is to make our game world more varied and enjoyable. The upcoming updates will introd

Oct 26, 2024
New Update Released: New Improvements and Bug Fixes

Hello players, Today we're releasing a new update on Steam! With this update, we've added numerous improvements to the game and fixed known bugs to provide a smoother and more enjoyable gameplay exper

Oct 23, 2024
Upcoming Update: Enhancements and Fixes Coming This Weekend!

Hello players, We have been carefully reviewing all your feedback, suggestions, and praise. To address the issues you have encountered, we will be releasing an update this weekend. Here are the improv

Aug 10, 2024
📢 New Content is Live on the Altarium Steam Page! 🎮

Hello Altarium community! The moment you've been waiting for has arrived! We've just added new in-game images and an exhilarating PvP & Co-Op teaser to the Altarium Steam page. These visuals and the t

Games like Altarium

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAdventure
Player tagsHorror · Multiplayer · Adventure · Co-op · Psychological Horror · First-Person · Dark · Survival Horror · Western · Online Co-Op · Story Rich · Gore (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Co-op · Online Co-op · Steam Achievements · Steam Cloud · Family Sharing
LanguagesEnglish * , French, Italian, German, Japanese, Portuguese - Portugal, Russian, Turkish, Spanish - Spain, Simplified Chinese, Portuguese - Brazil, Spanish - Latin America, Korean *
Achievements24
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10, 64 Bit Processor: AMD Ryzen 5 3600 / Intel equivalent Memory: 16 GB RAM Graphics: NVIDIA GeForce RTX 2070 8GB DirectX: Version 11 Network: Broadband Internet connection Storage: 20 GB available space