Rocket Launch Site quest fails, rocket destroyed

I figured out that the rocked has a build in explosive charge which is set to explode 30 seconds after launch.

Probably something very easy is wrong in this mission script, like the condition to win the mission is flipped to fail instead of win.

I went up to space with the rocket and deactivated the explosion sequence, the mission simply doesn`t finish, the rocket flies forever, only after I grind the explosive charge the message that mission failed is shown, where, as said before, I think is the main issue.

I have same problem ive tried it 4 times and triple chiacked everything even tried starting game over and playing straight though with out stopping and saving.

using debugs fine but it adds messages all the time telling you you used it up to the week before this new patch.

the only thing i can say is different to before the patch is the sporn location of the event is now near where a lake mite appear when they add water so is lower than the side off kill so lot lower. if its an alttitude thing. still loving it thow

Same here, every part of a contract works just fine, just a little while after the rocket lauches, it explodes and contract is failed.

Same here, tried it twice, same result.

Same here with the current stable Proton version on Linux. Maybe a bug introduced in today's hotfix?

Same here also, I think the contract is missing the final step that should complete before the rocket is destroyed. It's a gamebreaking bug though as this contract is the condition to unlock O2/H2 Generator.

I've rolled back from build ID 26128838 (22 Oct 2026) to build ID 26083128 (20 Oct 2026) and the contract finished successfully right after the rocket launched. So yeah... they broke it yesterday in 26128838. Rolling back the game version is the only way to complete this contract at the moment (there is always Debug Menu but it scars your save file with this nasty warning forever)

Can confirm, I've tried this mission 6 times now, completely reset the mission once. Fails every time.

Tried twice failed both times.

ok it worked on the 6th time i started at 1 am. it worked one big difference this time the base was placed higher up on grassy area. played it straight though only save was auto but it worked fine. in fact the contracted completion screen was given the second it cleared the hanger doors. Go figure

same problem for me, rocket explodes and mission failed

Tried also increasing the explosion delay up to 150 s, but it didn't help.

Don't know what the criteria for finishing the mission are - maybe we can meet them differently

I have found a solution if you turn off the warhead in the control panel before launching it works and finishes the contract

Rollback instructions:

1. Press Win+R, enter steam://nav/console
2. In the Steam console, run: download_depot 1133870 1133871 2600103535563134067
3. Wait for the Depot download complete (it will download 35 GB of data, no progress will be shown)
4. Switch Steam to Offline Mode
5. Copy Steam\steamapps\content\app_1133870\depot_1133871 into Steam\steamapps\common\SpaceEngineers2
6. Choose to overwrite all files
7. Launch the game with SpaceEngineers2.exe
8. If the game warns you about loading a save from newer version it means rollback has been successful. Abandon the contract and try completing it from the start.

I started a new world twice.

The first world it worked, but the second world it didn’t (Hotfix 4.0.0.3159).

I followed exactly the same steps both times.

ive just managed to get mine to complete......i made a manual save and deleted the others...i then exited the game did a steam verify of the files....relaunched....did continue and when i opened the doors it completed....and i was able to claim it

Finally!

last hotfix save me !

I've tried 3 times, 3 success.

Hey Yall!

I have an easy fix if anyone still cant get it to work

First I completed all the steps but opening the hanger bay doors (Including completing the steps about killing hostiles)

Then I found one of the 3 Button Panel Blocks around the site, each has a Control Panel you can access the sites grid from

Using that Control Panel I found 2 Timer Blocks on the station (I would not mess with the ones on the rocket) and I chose the one on the Elevator

I cleared its actions, set a new action to be "Roof Piston - Set Enabled" (Which is what the Hanger Bay Open buttons do)

And set the timer for 2 minutes

I then clicked start, ran back to my grasshopper ship, and flew straight back to the CO Station

I made it back in 1 minute 30 with a full cargo connector slowing down my ship so I think you have some leeway time wise

Then just waited by the terminal for the contract to complete, it unfocused first, then a second later completed it

Then immediately claimed the contract ASAP, and it worked!

The times Ive failed there has only been like... 10 seconds in between completion and failure, so Id recommend waiting right there and then being fast.

Anyways that is how I did it, worked for me. Maybe it will work for someone else too

After the most recent fix on 10/23, the contract worked for me. It succeeded as soon as the rocket started its launch.