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I Thalassa PlaytestNewsDevlog #31 – Quick Match, Personal Waypoints & Mac and Linux 22 of August
Game update

Devlog #31 – Quick Match, Personal Waypoints & Mac and Linux 22 of August

I Thalassa Playtest · published 22 Aug 2026, 19:21 UTC

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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 a button that copies it to the clipboard
  • Health bars for players and ships are drawn on a quad and are visible to everyone in the match
  • Healing and damage effects are replicated to the other players, and now stop correctly at full health
  • Multiplayer scene and character prefabs reworked, with LODs on the characters

Navigation and map

  • Points of interest: save a coordinate, rename it, delete it, and let the game guide you to it
  • Waypoint tooltip localized, with the texts imported into the scriptable objects
  • Units of measurement switch between metric and imperial, deduced from your region and overridable in the options
  • Crossing a region border now shows a line in the dialogs telling you where you are

Ship and balance

  • Ship stats replace Efficiency and Range with a single Engine Performance value
  • Fuel capacity, consumption and hull are now tuned separately for every ship

Interface

  • Menu panels have a single owner and names that no longer overlap
  • Inventory canvas rebuilt as a prefab, with slot capacities renamed so they read as capacity and not as a maximum
  • New shop slot prefab
  • Three more missions wired into the dialog UI
  • Mission target refreshes from the mission button, and the old update search button is gone
  • New sound for the Thalassa panel

Gameplay

  • Build mode is gated on the building areas and always targets the closest one
  • Thalassa hands out a reward for each completed fragment group
  • World spawner places unique objects in fixed quantities
  • New projectiles, with the old placeholder art removed
  • Cinematic camera used for the trailer footage

Fixes

  • The ship no longer pushes forward on its own while a panel is open
  • Opening a panel while moving no longer breaks player movement
  • The oxygen refill effect is visible again after a drowning
  • Bodyguard AI no longer breaks on missions taken after the acquisition
  • Kamikaze duck now targets the right mission objective
  • Projectile bug fixed
  • Health bar no longer tinted with the duck colour, since the shader does not expose it
  • Thalassa no longer floats on the surface, and her effects follow her correctly
  • Interactables persist as expected

Platforms

  • Linux build on IL2CPP Release, live on the linux-test branch
  • macOS build on IL2CPP Release with its own bundle id, and DisplayP3 in the colour gamut for wide gamut displays
  • Steamworks configured for all three platforms
  • Engine updated to Unity 6000.3.9f1

Thanks for playing the playtest. Bug reports on F8 land straight in our Discord, and they are the fastest way to get something fixed.

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Game update20 Aug 2026Multiplayer Fix v 0.7.679 August 20 2026In 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.Game update8 Aug 2026Multiplayer Matches, Ship Combat & Deep Sea Survival Dev Log 30Multiplayer 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…Game update24 Jul 2026Update 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…