A groundbreaking local co-op RPG for 1-4 players.
An ancient, malevolent force stirs within the depths of the Eon Altar, and it’s up to YOU to stop it! Eon Altar combines nail-biting action and turn-based tactical combat with an epic story of friendship, destiny and betrayal.
In Eon Altar, each player uses their smartphone as a private screen to see their motivations, thoughts and innermost secrets. Your mobile device also offers you lines of dialogues to read out loud—hopefully in your own eccentric performance you've developed for your character.
Your actions. Your game. Your way. You play your character the way you want it. Succeed together, or die alone.
With one Steam purchase, up to four players can access the game with our FREE Controller App, available for iOS and Android. Each player can use the Controller App to level up their hero, receive secret quests, consult secret thoughts, and choose lines of dialogues.
Eon Altar needs at least 512 MB NVIDIA GeForce 9800 / ATI Radeon HD 2600 XT and 4 GB RAM.
Minimum
OS
Windows 7
Processor
2.4 GHz Dual Core
Memory
4 GB RAM
Graphics
512 MB NVIDIA GeForce 9800 / ATI Radeon HD 2600 XT
DirectX
Version 9.0
Storage
4 GB available space
Notes
Local WiFi Connection
Recommended
OS
Windows 10
Processor
3.1 GHz Quad Core
Memory
8 GB RAM
Graphics
512 MB NVIDIA GeForce 9800 / ATI Radeon HD 2600 XT
DirectX
Version 11
Storage
4 GB available space
Notes
Local WiFi Connection
Is Eon Altar worth buying?
Steam
85% positive
'Very Positive', 576 reviews
Critics (IGDB)
95/100
1 critic
Be the first to review Eon Altar
What is Eon Altar about?
A groundbreaking local co-op RPG for 1-4 players.
An ancient, malevolent force stirs within the depths of the Eon Altar, and it’s up to YOU to stop it! Eon Altar combines nail-biting action and turn-based tactical combat with an epic story of friendship, destiny and betrayal.
In Eon Altar, each player uses their smartphone as a private screen to see their motivations, thoughts and innermost secrets. Your mobile device also offers you lines of dialogues to read out loud—hopefully in your own eccentric performance you've developed for your character.
Your actions. Your game. Your way. You play your character the way you want it. Succeed together, or die alone.
With one Steam purchase, up to four players can access the game with our FREE Controller App, available for iOS and Android. Each player can use the Controller App to level up their hero, receive secret quests, consult secret thoughts, and choose lines of dialogues.
RPGAdventureActionLocal Co-Op4 Player LocalIndieTurn-Based CombatCo-op
Game modes: Single player, Multiplayer, Co-operative, Split screen
Quick answers
What is the cheapest place to buy Eon Altar?
Right now the lowest price for Eon Altar we're tracking is $0.69 at Gamivo. We compare 2 stores and prices refresh every few minutes.
What is the lowest price Eon Altar has ever been?
The lowest price we've recorded for Eon Altar is $0.69 at Gamivo on August 1, 2026. The current best price matches that all-time low — historically a good time to buy.
Is Eon Altar worth buying?
85% of 576 Steam user reviews for Eon Altar are positive ("Very Positive").
Can my PC run Eon Altar?
The minimum system requirements for Eon Altar are — OS: Windows 7; CPU: 2.4 GHz Dual Core; GPU: 512 MB NVIDIA GeForce 9800 / ATI Radeon HD 2600 XT; RAM: 4 GB RAM; Storage: 4 GB available space. See the full minimum and recommended specs in the system requirements section on this page.
What platforms is Eon Altar available on?
Eon Altar is available on PC (Microsoft Windows), Mac. It supports single player, multiplayer, co-operative, split screen.
Where's the cheapest place to buy Eon Altar?
The cheapest Eon Altar price right now is $0.69 at Gamivo.