Playing now
0+0 vs. yesterday
All-time peak
07 Sep 2026
| Published | Title | Build |
|---|---|---|
| Devlog #31 – Quick Match, Personal Waypoints & Mac and Linux 22 of August Two weeks of work on top of the last build. Getting into a match is now a single click, the map remembers the places you care about, and the game runs on Mac and Linux. Multiplayer · Quick Match: Steam matchmaking with public lobbies, so you can join a session without a code · Multiplayer panel rebuilt to explain itself, with a tooltip on every button · Your Steam ID is shown in the panel with… | — | |
| Multiplayer Fix v 0.7.679 August 20 2026 In this version I am fixing the MP with integration of linux and Mac. For MacOs Testers please contact me and you can get a version of the game for your computer. You can help me to shape the game. Thank you. | — | |
| Multiplayer Matches, Ship Combat & Deep Sea Survival Dev Log 30 Multiplayer Matches now play out from start to finish instead of falling apart at the end. · Get eliminated and you stay in as a spectator instead of being dropped back to the menu · The host is asked to confirm before quitting, and everyone gets a readable message when a player leaves or is kicked · One shared match HUD, so the state of the match is the same on every screen · Your duck color i… | — | |
| Update for July 24 2026 - Devlog #29 - Online Multiplayer, Story Arc Finale & Living Regions Hi everyone, Manuel Hosseini here with Devlog #29 for I Thalassa. This was the biggest month so far: the game goes online with ship-vs-ship battles, the Shinoise story reaches its ending, and every region of the map now has its own look and identity. Online multiplayer where you fight other players ship against ship, board their vessel, and… | — | |
| Update for 3rd of July 2026 - bodyguard items collectors - new missions - general bug fix - Thalassa discovery items and UI for fragment discoveries - new inventory UI Alpha test: It's always recommended to create a new session in order to do all the new missions in the right order. Thanks | — | |
| update for 2nd of July 2026 Mission build fix mission title localized boost improvements tooltip on items icon inventory full message | — | |
| update for 1st of July 2026 Devlog #28 – Playable Duck, Story Fragments & Sea Currents This update introduces a brand-new playable duck character, expands the game's narrative with a story-fragment discovery system, and adds fast underwater traversal through powerful sea currents. New Features · Added a new playable duck main character with a complete animation set and holographic dialogue system. · Introduced Story Fragm… | — | |
| update for 21st of June 2026 - Code to access with discord - small changes on scenes | — | |
| update for 6th og June 2026 - riding current improvements - oxygen and booster missions - fixing material (healing and electric) In order to have a better experience I recommend you to start a NEW session on the main menu at the beginning, in this way you can always find the new missions. By the way this is not mandatory and you can keep continue with your session already begun. Thanks. | — | |
| Update (2) for 19th of June 2026 - small fix (Added missing language on main menu panel) | — | |
| update for 19th of june 2026 - small fix on scene - buttons social for playtest - current ride VFX and sfx 1 min tutorial here below: | — | |
| Update June 18th 2026 - Oxygen UI feedback on recharge - booster for player automatic on scene - small fix on scene | — | |
| Update June 17th 2026 - General Bug fix (from reported bug on discord) - Buoyancy force on healing and oxygen regen - UI | — | |
| Update for june 16th 2026 - main menu YT Button - controller UI tutorial panels - ship camera improved - fixed warning messages on low oxygen - new translations - increased oxygen and power gen default max | — | |
| Update for June 15, 2026 We’ve rolled out a new playtest update focusing on survival systems, combat behavior, UI polish, and mission integration. 🔧 Highlights New oxygen survival system with O₂ zones, low-oxygen warnings, and refiner prompts Refinery modules now convert raw resources into oxygen and power with dedicated UI New escort-style enemy AI with bodyguards protecting leaders + combat fixes New missions tied t… | — | |
| Update for june 7 2026 - ship heal and fuel effect improved on item drop on the ship icon - swim boost bug on sand fixed - exclusivity between inventory and exit panel bug fixed - Nautilus animal - ship damage effect restored - flag on first module - new grass alga - fluid camera movement fix | — | |
| Update for 2nd of June 2026 - Camera movement fix - cleanable alga - menu toggle fix - low quality sea fix - Tooltip for ship toggle panel Tanks everybody for the feedback Keep texting me in private or directly in the community: Here below a mini tutorial to understand how to play this alpha test. Thanks | — | |
| Update for may 27th Fix and improvements for the alpha test release · build mode toggle · coral reef new · main menu improvements · virtual cursor on main menu fixed · scene main · UI general improvements · boost effect · ship altitude blocker | — | |
| Update 17 may 2026 - Saving system SAVE SYSTEM ONLINE. SENTINELS ACTIVATED. Devlog #25 – Major Systems Update This update pushes I Thalassa deeper into large-scale underwater gameplay. Persistent progression, enemy wave management, recruitable bodyguard ships, upgraded VFX pipelines, and fully refactored combat systems are now online. FULL SAVE SYSTEM Your progression now persists through a complete multi-slot architecture. · 3… | — | |
| Rideable Creatures, Physics Overhaul & UI Redesign - march 31 This update introduces major improvements to gameplay, physics, and visual clarity. - Added rideable sea creatures with full player control, smooth turning, and dynamic camera banking - Implemented jellyfish group behavior with electric net damage mechanics - Complete Rigidbody physics overhaul for sea animals and enemy submarine AI - New visual direction with redesigned UI, updated fonts, and… | — | |
| Devlog week #20 Patch Notes – Devlog #20 I Thalassa – The New World [] Gamepad & Input []Full virtual gamepad cursor system for menus and inventory []Improved camera input handling for gamepad-driven UI navigation []Cursor manager system refactor with debug mode fixes []Ship input system fully separated from character controls []Smoother and slower camera movement for improved comfort [] Gameplay []New bodygua… | — | |
| updates for gen 4th 2026 polishing the scene and performance improvements | — | |
| update notes for 20 nov v. 0.4 Fixed build packaging issue. Re-uploaded complete game files | — | |
| Update notes for Nov 30 Fixed build packaging issue. Re-uploaded complete game files. | — |
| Date | Day | Time | Patch title | Build ID | Branch | Depots | Download Δ |
|---|---|---|---|---|---|---|---|
| 7 Sep 2026new | Mon | 18:22 | No patch notes · unannounced build | 25172729 | public | 1 | — |
| 6 Sep 2026 | Sun | 19:49 | No patch notes · unannounced build | 25156038 | public | 1 | — |
| 6 Sep 2026 | Sun | 13:54 | No patch notes · unannounced build | 25152344 | public | 2 | — |
| 3 Sep 2026 | Thu | 20:55 | No patch notes · unannounced build | 25110403 | public | 2 | — |