Dr. William, who is a slave to the desire for power, sends a research team consisting of Hannah Falkenhorst, Black Jack Kane, Grimroot, and Marco Rocio to the town of Golden Horn to obtain the Korion Jewel, which gives mystical powers to its owner. It doesn't take long for the research team, who are unaware of the powers of Korion, to realize that they are trapped in Goldenhorn. The guardian of the jewel with mystical powers has no intention of sending the team back alive. 
Altarium is a deeply atmospheric horror game that can be played in both PvP and Co-Op modes, accommodating 1 to 5 players. You have the freedom to play as a member of Team A, where cooperation and communication are key to survival, or step into the shoes of Luxazul, the menacing character whose very presence instills fear in others.
In this chilling world, every game is a battle for survival or domination, where the stakes are high and the tension never lets up. With its haunting environments, intricate gameplay mechanics, and intense multiplayer modes, Altarium offers an unforgettable horror experience that will keep you and your friends on the edge of your seats.
Determine your strategy by using all the tools necessary to survive. Succeed in the challenge by using special character abilities, teamwork, and environmental advantages. Try to get ahead in the struggle for survival with the unique abilities and special equipment of your avatar. Survive as Team A or don't let anyone escape as Luxazul!
We are excited to announce that Altarium will be supported with regular updates and will constantly offer players new content. Each update will be carefully prepared with the aim of adding new excitement for you. These updates, filled with brand new content, characters, maps, and equipment, will continuously enrich your gaming experience. Based on the feedback of our community, we are striving to make the game even more interesting and provide you with more options.
Problem Solver
Not unlocked yetDisable one of his traps.
It's Too Early Yet
Not unlocked yetSave your friend from Upside Down
Dante
Not unlocked yetEscape from Uspide Down
I'm in a hurry
Not unlocked yetComplete the game within 20 minutes.
Despite Everything
Not unlocked yetComplete the game as the last person alive.
Cleaner
Not unlocked yetKill 5 Laxars in one session.
Weaponless Force
Not unlocked yetComplete the game without using weapons.
Immortal
Not unlocked yetComplete the game before falling into Upside/Down.
No Place for Fear
Not unlocked yetComplete a game without decreasing your fear level.
Luck or experience?
Not unlocked yetComplete the game before Laxar arrives.
A+++
Not unlocked yetComplete the ritual with a 98% success rate.
Team Game
Not unlocked yetComplete the game without any team member falling off the cliff.
Pure Body and Mind
Not unlocked yetWin the game without any player using a weapon.
Enjoyment at its place
Not unlocked yetFinish the match when everyone on the team's mental health is above 70%.
Fight for Your Life
Not unlocked yetPlay with the Survival character
Collector
Not unlocked yetFind all gate items.
I'm Not Crazy
Not unlocked yetRenew your mental health.
Ritual Master
Not unlocked yetDo all the ritual preparations.
Agony
Not unlocked yetDestroy the entire team.
It's Not Over Until It's Over
Not unlocked yetAfter successfully completing a ritual, kill 1 enemy.
Dissector
Not unlocked yetDestroy the entire team within 20minutes.
Easy Prey
Not unlocked yetSend two opponents within 3 minutes to Upside/Down.
Blender
Not unlocked yetBreak up the whole team after a failed ritual.
Master of Fear
Not unlocked yetPlay with the boss character