About the game

Lethe is a first person adventure with survival horror elements. Explore an atmospheric and frightening world and uncover the dark secrets of your origins.


Each Episode is considered to be a stand-alone experience. Any future Episodes will expand upon Lethe's lore and backstory, but not necessarily the same protagonist's story.


Crushed under the debts of his recently deceased step-father, Robert Dawn, a journalist with an unremarkable career, decides to hunt down his origins. Everything points to a quiet mining settlement. Shortly after his arrival, Robert comes into contact with an unknown substance and develops psychokinetic abilities that feed on his life energy. As tension rises, he is faced with another, even darker threat, quickly turning the trip into a terrifying battle for survival.


  • Stealth Gameplay: Run or hide to survive.
  • Psychokinesis: Manipulate the environment and use it in your aid. But be careful! Your newly gained abilities can only affect inorganic objects.
  • Quality Graphics: Immerse yourself in a highly detailed and horrifying world.
  • Story: Lethe isn't your typical adventure game. Learning the story behind the places you'll visit, is entirely up to you.

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We have collected the most commonly asked questions about Lethe: Episode One and compiled them into this FAQ. If you would like to know more, don’t hesitate to contact us at contact@koukoustudios.com.

What about localization?
As mentioned before, we would very much like to support multi-language localization for Lethe: Episode one; However, as a small company we’re relying solely on our product’s sales and this kind of (big) overhaul is currently simply out of reach.
Because we know there is a demand, we would like to extend an invitation to localization groups who have already made a localization for Episode One or worked on quality translations before, to contact us and provide us with their material, so that at a later point in time we might be able to make this a reality.

What about motion sickness?
Previously there have been requests for a way to limit the amount of camera sway, in case of motion sickness or nausea; Because of these requests we have previously introduced a Configuration File tweak that reduces the sway and should solve most cases of nausea. Check it out here.

Do I need to play all episodes to understand the story?
Each episode is a stand-alone experience with a self-contained story and ending on its own, focusing on different sub-plots or individual characters. Episodes do not need prior play of any other episode to understand, but will create a deeper connection to the story and provide a much more in-depth experience.

What is going on with Lethe (Episode Two)?
The project is alive and we’re actively working on it but that’s all we can share about it at this time. An official announcement will follow once possible.

Support for VR?
There are currently no plans to provide native support for Virtual Reality due to the complexity of the matter. There is however at least one non-official (and thus unsupported) way to use your VR headset with the game:
You may try to force VR compatibility with “VorpX”, as some people have managed to get it to work with an HTC Vive. However, we can’t provide any guarantees that it will work, it might be detrimental to your experience in the game and/or break certain parts of the game, simply because it is not supported by default.

Is there going to be a Mac version?
Due to low demand and the high number of technical issues that need to be overcome as a result of the discontinuation of Unreal Development Kit’s development, have unfortunately led us to cancel the Mac version.

What about a DRM-free version?
The DRM-free version of Episode One is still in our plans, but due to the development of the next project taking up all our available time and the requirements of such a move we’re keeping this under wraps for now.

How do I fix this technical problem?
Most, if not all of the known technical issues reported can be solved by following this guide.


LETHE: Hotfix 1.2.13 now available

LETHE: Hotfix 1.2.13 now available


-Fixed a crash that could happen when the Steam client is in offline mode or when disconnected from the internet.

Lethe:Ep1 gets Steam Achievements

Lethe:Ep1 gets Steam Achievements


‘Lethe: Episode One’ gets updated to version 1.2.10 introducing several game improvements and 19 steam achievements.

Lethe Ep1: Top 10 User Screenshots

Lethe Ep1: Top 10 User Screenshots

News 1 comment

By ignoring their current community rating, we decided to create a top ten of what we believe to be the best user screenshots to date.

Lethe - Episode One: Update 1.2 in Public Beta

Lethe - Episode One: Update 1.2 in Public Beta


We’re glad to announce that Update 1.2 is now available on the new Public Beta branch on Steam! This update also contains support for the long-awaited...

RSS Files
LETHE - Psychokinesis Trailer

LETHE - Psychokinesis Trailer


Lethe - Episode one: Psychokinesis Trailer (720p wmv file)

Comments  (0 - 10 of 61)

Awesome game so far! Already can't wait for episode 2 which they recently announced that it's in the works

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Psst, if you wanna see gameplay Markiplier has uploaded a full play through of Lethe.

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I'm interested in showcase it. I'll communicate soon with you guys.
Looks amazing so far :]

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It looks really good!

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So good! Nice

Reply Good karma Bad karma+3 votes

this looks so damn beautiful

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It looks so nice :)

Reply Good karma Bad karma+3 votes

The game looks really good, well done

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Looks nice! I like it

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Lethe - Episode One
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Latest tweets from @koukoustudios

RT @ZeroComfort: Lethe - Episode One now 75% off on @GreenManGaming! #gamedeals #deals Greenmangaming.com:443

Jul 19 2017

Hotfix 1.2.13 for #LetheEp1 now live on Steam: Steamcommunity.com

Jun 10 2017

RT @PixelShogoz: New Vid: Youtu.be Can't wait for episode 2! @KoukouStudios #lethe #indiedev #indiehorror #indiegameT.co

Jun 3 2017

Lethe - Episode One now only 3,92 € on @GreenManGaming! #gamedeals #deals Greenmangaming.com

May 31 2017

We have collected the most commonly asked questions about #LetheEp1 and compiled them into this FAQ: Koukoustudios.blogspot.gr

May 6 2017

#LETHE: Episode One is on the loose for less than 5$ for a week only! Grab it now on Steam: Store.steampowered.comT.co

May 2 2017

Hotfix 1.2.12 for #Lethe:Ep1 available: Steamcommunity.com #gamedev #indiegame

Apr 5 2017

Working on updating our website: Koukoustudios.com. Some pages are down for the moment but we'll get them up… T.co

Mar 29 2017

RT @WhitePaperGames: It's been a long time in the making and we're so excited to be able to finally announce our new game: The Occupation T.co

Mar 22 2017

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