Screenshots
Watch trailer on Steam ↗Kairos
Noah Gallo, Isaiah Hogue, Nathaniel Kanooni, Colby Nelson, Tre Carlton · Published by Atrius Games
Mostly Positive — 70% positive (10 reviews)
Last updated 27 Sept 2026
Kairos is an RTS game set in a medieval fantasy world consumed by Corruption. As a last bastion of life, you must build bases and lead your armies to fight the endless hunger. Discover new magics to purify the land and reclaim what was lost. At the end of times, will you win? Or you will die trying?
Free to PlayDJCTQ 14
Free
Free To Play, Strategy · 2023 · More free games
Lead your forces against the encroaching Corruption in Kairos, a free-to-play strategy game where every base you build is a step towards reclaiming lost lands.
About this game
Kairos is an RTS fantasy experience that pits the player against the corruption in the world. The player must build structures and train soldiers, archers, and mages to fight alongside the hero and defeat the corruption. If left to its own devices, the corruption will send corrupted units to defeat the player's forces as well as expand and overrun the land until the player has nowhere left to hide. You must not only train soldiers to fight corrupted enemies but also create purifiers to reclaim the corrupted land.
The primary enemy the player will face is a corruption that slowly expands across the continent. The corruptions will not only hurt the players units, but it will build up it’s own army of monsters to take down the player’s kingdom. As such, it is the players job to keep his kingdom alive and, with enough effort, cure their homeland of this vile plague.
Using a collection of different units, structures, and magic, the player will be able to build and expand their kingdom into the corrupted parts of the world. As you expand, more resources will become available to the player. This will allow the player to continue to expand into the deeper corruption. Eventually, with enough effort, the player will completely purify the continent, making it a prosperous land.
The primary enemy the player will face is a corruption that slowly expands across the continent. The corruptions will not only hurt the players units, but it will build up it’s own army of monsters to take down the player’s kingdom. As such, it is the players job to keep his kingdom alive and, with enough effort, cure their homeland of this vile plague.
Using a collection of different units, structures, and magic, the player will be able to build and expand their kingdom into the corrupted parts of the world. As you expand, more resources will become available to the player. This will allow the player to continue to expand into the deeper corruption. Eventually, with enough effort, the player will completely purify the continent, making it a prosperous land.
System Requirements
Will my PC run this? →Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS: Windows 10, 11
- Processor: Intel i5, AMD Ryzen 5
- Graphics: Intel Iris xe
- DirectX: Version 11
- Storage: 1 GB available space
Recommended
Recommended:
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel i7, AMD Ryzen 5
- Graphics: Nvidia GeForce, AMD Radeon
- DirectX: Version 11
- Storage: 1 GB available space
Supported Languages
English*
*languages with full audio support
*languages with full audio support
Latest news
AnnouncementsOfficial
Kairos 1.0.0 Release!
{STEAM_CLAN_IMAGE}/43645021/79e055dd2927b3f0508e742a1c170e21894b2142.jpg Kairos is out now and free to play!!! So, what is Kairos? Kairos is a Real-Time Strategy base building game set in a medieval fantasy world consumed by an ancient Corruption. As the last bastion of life, you must fortify your defenses by creating armies and building structures to fight the endless corrupted onslaught. As the Corruption spreads across the land, the player will deploy Purifiers to cleanse the world and take back their home from the evil corruption. Kairos 1.0.0 Changelog Changes Archer towers have been made smaller and shoot faster Production and Structure UI has been updated Added Unit Icons Added Well as an occasional decoration The world will now generate destroyed corrupted structures which the player can capture with a builder Collector unit will highlight the resource it is collecting from and the stronghold it drops them off at when selected Press 'o' to move camera to nearest builder Press 'p' to move camera to nearest collector Settings menu is enabled and allows for setting resolution and choosing Fullscreen setup MiniMap added to game Press 'm' to hide the MiniMap Bug Fixes Resource Collectors now release nodes on deathRead full article on Community Announcements (gallon1)AnnouncementsOfficial
Kairos 0.3.0
Changelog Tutorial - A new menu allows you to enter the tutorial when starting a new game. - The tutorial describes to users how to play the game without the corruption spread being turned on. This should help new users with getting started. Changes - Unit Queue can now be seen - Units can now be removed from the queue. - Structures and Units now have resource costs. - Map Reload now occurs all at once - Exit confirmation added to the pause menu Bug Fixes - Unit commands can no longer be done through the UI - You can no longer destroy enemy nodes - Destroy button now only appears when a structure is selected - Corruption should no longer spread when paused - Fixed frame drops when updating mapRead full article on Community Announcements (gallon1)Patch NotesOfficial
Kairos Patch 0.2.2
Changelog Changes - Corruption can now damage units and structures - Health bars show on damaged units - Shift + click button to train 5 units at a times - Removed box-select units - Added structure delete button Bug fixes - Archer tower no longer purifies the corruption - Builders no longer freak out… - Clicking on items with a menu no longer fails when moving from one to another - Any builder can now continue - Fixed Menu Building Clickthrough - Fixed box select menu clickthrough - Fixed UI Button Text size - Fixed defeat parameters - Fixed main menu sizing issueRead full article on Community Announcements (gallon1)Patch NotesOfficial
Kairos Patch 0.2.1
Changelog Purification - You can now build the purification tower - Purification towers will push back the corruption keeping it from growing Other - Added arrows to Archers - Added arrows to Archer Towers - Added rally point flags Bug Fixes - Build now path finds with other units - Fixed scene lighting issues - Fixed world not randomly generating - Enemies now target other structures and unitsRead full article on Community Announcements (gallon1)AnnouncementsOfficial
Kairos 0.2.0 is Out!!!
{STEAM_CLAN_IMAGE}/43645021/79e055dd2927b3f0508e742a1c170e21894b2142.jpg Changelog Corruption - Corruption now effects the tiles of the world - Corruption will slowly spread across the world - Corrupted Nodes will spawn only in corrupted areas - Enemies now attack the stronghold Crystal Resource - Player can now train resource collectors to collect resources **Resources are not used for anything yet** World Generation - Updated terrain generation settings - Added corruption generation - Added tree decoration spawning - Generator now places corruption nodes automatically - Generator now places stronghold automatically - Stronghold clears nearby corruption upon world creation - Added corrupted tree variants - Added Crystal Resource Spawning New Units - Archer - A simple long ranged attacking unit - Builder - Can construct secondary strongholds for spawning more units - Resource Collector - Collects from resource nodes (Resources are currently useless) New Structures - Archer Tower - Tower that attacks units who come near it - Purifier - Can purify nearby corrupted towers - Barracks - Allows for training of units New Decorations - Added Tree that spawns in the world (Does not have any interaction) - Added Corrupted Tree variant New Models - Added model to archer - Added model to builder - Added model to corruption node - Added model to Stronghold User Interface - Swapped to the new Unity UI Toolkit system - Updated Some menus - More to come Updated Camera Movement Added Mac CompatibilityRead full article on Community Announcements (gallon1)
