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HARWELL: Mars IndustriesNewsv0.20.4 Patch
Game update

v0.20.4 Patch

HARWELL: Mars Industries · published 13 Apr 2026, 11:24 UTC · build 22753088

All newsPlayers around this dateRead on Steam

New Features

  • Friends system with Steam and Nakama integration — add friends, see their status (online, in-game, in-lobby), and invite them directly to games.

  • Beautiful Shadows toggle in Graphics settings for the new lighting pipeline.

  • Game end screen redesign with full-screen overlay, financial graphs (revenue, expenses, company value, profit, debt), per-resource production tables, and complete player leaderboard ranked by company value.

  • Spectate mode for eliminated players — watch the rest of the game without access to building, demolishing, or sabotage menus.

  • Expanded lobby hosting and connection flow with signal-driven status updates.

Improvements

  • Host migration now elects a new host automatically when the current host disconnects, with high priority notifications.

  • Host disconnection detection prevents players from getting stuck in zombie states.

  • Reconnect prompt now validates against live Nakama matches to prevent connecting to dead lobbies.

  • All players can now see every player's sync status, not just the host.

  • Building stats rebalanced for better economy flow.

  • Dynamic map viewport bounds computed from terrain for better rendering efficiency.

  • Notification panel enhanced for better event visibility.

  • Per-transaction price sync rate limited to prevent network flooding.

  • Building state flushes capped to prevent burst RPC traffic.

  • Stock broadcasts batched for smoother network performance.

  • AI will buy/sell stocks slightly more realistically, they won't just go for the cheapest company, they will invest in companies that are doing slightly better so they can benefit from dividends.

  • Updated the main menu background image.

Bug Fixes

  • Fixed lobby sometimes displaying as greyed out when joining.

  • Fixed players unable to join games after leaving due to version mismatch.

  • Fixed buying your own stock not actually costing money.

  • Fixed stock data resetting when a bought-out player disconnects.

  • Fixed manual wage not syncing in multiplayer.

  • Fixed long player names breaking labour tab layout.

  • Fixed housing texture missing in exported builds.

  • Fixed game won screen not showing for non-host winner.

  • Fixed building colours not refreshing when changing custom colour in stock menu.

  • Fixed bought-out and eliminated player notifications showing raw peer IDs instead of display names.

  • Fixed bought-out players being able to rejoin games.

  • Fixed SubViewport leak on map restart that was consuming memory.

  • Fixed disconnect calls that were crashing the networking layer.

  • Fixed player reconnection, requires testing but this should now allow players to reconnect if they crash or get disconnected.

More from HARWELL: Mars Industries

Other announcements

All news
Community8 Jul 2026Dev Diary #1 - The Building BlocksHello, Pioneers, and welcome to the first Harwell: Mars Industries dev diary. If you're new here, hello! I’m Caleb Houlding, solo developer of Harwell: Mars Industries, along with publisher Aquila Interactive. It's great to have you here! Today we’re looking at the building blocks of Harwell: Mars Industries, and we'll be showcasing the implementation of various buildings, along with their reso…Community28 Apr 2026New Publisher Announcement!Mars is open for business! Developer Caleb Houlding is partnering with publisher Aquila Interactive to announce Harwell: Mars Industries , a sci-fi economic strategy game set on Mars, coming 2027. This is the start of an exciting journey, and we'd love for you to head to the Store page, wishlist and come along with us for the ride in our Discord . What is Harwell: Mars Industries Each corporati…Game update6 Apr 2026v0.20.2New Features · Cosmetic delivery ships now fly between your HQ and distant buildings with smooth arcs, steering, and dynamic shadows. · You'll now get a daily notification when you don't have enough workers to keep up with demand. Improvements · There's now a loading overlay while the lobby loads so it doesn't just feel like nothing's happening. · The sync overlay got a full redesign with a cle…