9.8
By André B. Silva · published by Tremoço Games
About 9.8
9.8 is a game tagged Space Sim, Physics and Sandbox by André B. Silva, launching on Steam on Dec 15, 2026. That is a quiet week for games like it, with 8 similar games launching the same week. The quietest week ahead for games like it starts Nov 23. The Steam games most like it include Rocket Engineer, Spaceflight Simulator and Spaceflight Simulator 2.
Build a space program from one launch pad to colonies on distant moons and planets, in 2D, with real orbital physics. Design rockets, fly every mission by hand, dock stations, mine asteroids, and launch with friends in online co-op. Deorbit a moon if you want.
Launch window
Open in Launch Week CheckerBusiest weeks for games like this one in the next 12 weeks:
- Week of Nov 9, 2026 — Packed, 109 similar games
- Week of Oct 26, 2026 — Packed, 100 similar games
- Week of Nov 2, 2026 — Packed, 110 similar games
Quietest: Nov 23, Dec 7, Jan 11.
Also launching the week of Dec 14
All upcoming games
Steam data
Everything Steam lists for 9.8 · record updated 1 day ago
Overview
App info
- App type
- Game
- Developer
- André B. Silva
- Publisher
- Tremoço Games
Platforms
Features
9Patches
Patch notes
5-
Oct 19, 2026 v0.6.32 - The Multiplayer Update
If you've tried the 9.8 demo before, this is the update to come back to.9.8 v0.6.32 - public demoMultiplayer is here. You can now host a game from the main menu and create a multiplayer universe. Hosting and joining should be simple and in…
-
Oct 11, 2026 v0.6.31 - major performance patch
Directx 11 path now available for older GPUs that don't support vulkan. This should allow players that couldn't launch the game to play. Note: It'll take a long time to load the game (we're talking more than 5 minutes sometimes, if you're …
-
Oct 5, 2026 v0.6.29
v0.6.29 - minor patch Linux via Proton broke on the last patch. Should be fixed so Linux players can play again.Massive improvement to medium/low graphics which should be felt especially on integrated GPUs, (measured twice FPS during rocke…
-
Oct 3, 2026 v0.6.28 Update.
v0.6.28 is live - Major performance and startup pass Demo data is starting to payoff as I can see most of the places where slowdowns, hitches and startup failures are happening. I'll keep on updating the demo to try to get the game to run …
-
Oct 1, 2026 v0.6.27 hotfix
hotfix - v0.6.27 is live! Replays are working through Steam, finallyMore tools implemented to try to understand and fix the fullscreen crashesController input off for nowNew game selects the first slotOpen crash log folder on the recovery …
News
-
Sep 30, 2026 · Community Announcements Demo is live
Hi everyone, André here.The 9.8 demo is out now and free to play. Thank you to everyone who's been testing, reporting bugs and following along. A lot of this build was shaped by your feedback, seriou…
-
Sep 21, 2026 · Community Announcements 9.8’s demo launches September 30
9.8 demo is launching September 30. For everyone who's been wanting to try the game, here's your chance! I’ve been working on making the opening hours feel better, from building your first rocket to …
-
Apr 13, 2026 · Community Announcements 9.8 - Rocket Construction is Coming
Hi, I'm André, solo dev behind 9.8, based in Porto, Portugal. First Steam news post for 9.8, so let me catch you up.9.8 is a 2D space agency simulator built around real orbital mechanics. You launch …
Data from public Steam pages, updated daily; 4 days of history. LaunchRivals is not affiliated with Valve or Steam.