Screenshots
Echoes of Eta
Cheshirecrow, GrayNekoBean · Published by Cheshirecrow
Content notice: This game contains a small number of gameplay-related references to drugs and alcohol, which are presented only in text form. These references are limited to story events, item descriptions, or gameplay mechanics and are not visually depicted or promoted.
Last updated 28 Sept 2026
Echoes of Eta is an underwater PVE survival game with RPG elements. Scavenge natural resources to customise your mobile base ship, build portable tools and robotic companions. Explore the abyss and uncover the truth behind humanity's collapse.
Adventure, Indie, RPG · More free games
About this game
Welcome to Nereid-42
Play as Viktor Revik, who wakes up after the planetary apocalypse.
Join the deep-sea survival journey set on the mysterious alien ocean planet Nereid-42. Discover what happened to existing human colonies after the Crimson Cataclysm, and the secrets that are hidden under the deep sea.
Underwater Survival Journey
Balance your survival needs for oxygen, hunger, and thirst in an extreme alien environment. Explore diverse locations to scavenge resources and uncover potential technologies that can enhance your survival capabilities.
Your Ship, Your Mobile Base
Your ship comes equipped with automation systems and extensive customisation options. However, the harsh underwater environment of Nereid-42 will constantly challenge your ability to survive.
Use available space to construct modular structures that support your long-term survival. Manage production resources and monitor your ship's power supply before venturing into the deep sea.
Craft Advanced Tools
Create survival equipment and deployable modules to upgrade your character. From repair tools to automated defence turrets, every tool can become essential for survival.
Progress technology
Advance through Eta's self-evolving technology system. Analyse unknown entities and collect data from the remnants of humanity's lost civilisation. Progress the tech tree and unlock new craftable structures and equipment blueprints.
Combat Hostile Threats
P.U.L.S.E. provides comprehensive solutions for defence and offence by analysing local extreme threats and recovered human weapon technologies. Construct advanced biomechanical robots to accompany you on your journey, protect mining operations, and fight against hostile predators lurking in the abyss.
Gather Rare Resources
Use moonpool robotic arms and automated mechanical units to recover valuable materials, or explore the ocean depths yourself in a specialised diving suit to discover rare resources hidden beneath the surface.
Biomechanical Companions
Research and replicate the unique characteristics of local species to create advanced biomechanical companions. They can assist you with transportation, provide powerful combat capabilities, or extract valuable resources.
Upgrade and customise your companions through equipment and module slot systems, enhancing their abilities as you explore the unknown world together.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit (version 21H2 or later)
- Processor: Intel Core i5-4460 / Ryzen 3 1200
- Memory: 8 MB RAM
- Graphics: GTX 950 / GTX 1050 / RX 560
- DirectX: Version 11
- Storage: 5 GB available space
- Sound Card: DirectX-compatible sound device
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit (version 21H2 or later)
- Processor: Intel Core i5-8400 / Ryzen 5 3600
- Memory: 16 GB RAM
- Graphics: RTX 2060 6GB / RX 5600 XT
- DirectX: Version 12
- Storage: 8 GB available space
- Sound Card: DirectX-compatible sound device
Supported Languages
Latest news
AnnouncementsOfficial
Playtest will be avaliable until 9th Sep.
Hello agents,The playtest access will be available until 9th Sep. Thank you so much for participating and sending us valuable feedback. In fact, there are already many good suggestions that we have added to the following refactor plan for our next major updates.We still want to wait for more feedback from you during the playtest period before deciding our next move. So be sure to drop us more feedback through our Discord or Google Form via the in-game feedback button.Wish you a fruitful journey on Neried-42.CheshirecrowRead full article on Community Announcements (hongyulinbusiness)AnnouncementsOfficial
Join the Pre-alpha playtest
The playtest release is finally out!If you are interested in an underwater PVE survival craft game (and don't mind a pre-alpha game that has issues), you can join our Discord server and sign up for the playtest.To make the feedback process more streamlined for you, we added feedback buttons in-game that will take you to a Google Form, where I listed some key questions and areas where you can leave comments. We would really appreciate it if you could take some time to fill out the form so we can make the game better. These buttons can be found after a storm cycle event, so you know you have completed a loop and have things to say about the game. But if you missed it, it can also be found before you exit to the main menu.You can, of course, also talk to us directly on the Discord server.Please note that we are only giving access to a small number of people that me and Derek can currently handle, as our focus now is getting feedback. So we won't be able to grant access to players who only clicked the playtest enrollment button.CheshirecrowRead full article on Community Announcements (hongyulinbusiness)
