... three weeks later, nada?

Yeesh.

Hey @rrussell,

I checked the post on Steam regarding the Unofficial Patch and while at least three people asked for a patch made for the GOG version, Decavoid, the creator has since remained silent. They however need to create the patch individually since the DLL contains code for challenges and leaderboards i.e. Steam-specific features, which aren't present in the GOG version. This is why the patch doesn't work.

I took the DLL and decompiled it to see if I can get it to work but it wasn't exactly clean and Visual Studio isn't really my forté either. Which left me with the question if it's even worth it. While the game sure has a few bugs, they are highly circumstancial and some even just limited to challenges in general. I played around 80 hours and didn't really suffer from anything game breaking - can't even recall having lost an item/upgrade/drone once.

I'll try to reach Decavoid again, but if that turns out to be fruitless, I'd say just go on ahead and play the game. :)

Hey, thanks! I admit I ran out of steam (hurr) after posting those questions and stopped following up.

I reckon I'll keep playing, as advised ;) If you don't hear back from Decavoid, don't worry overly...

Yeah, this was on my wish list, it looks neat.

Or it was, until I noticed that a large fan patch was a thing, and I read noise about developers not supporting the game anymore. So... I probably won't support that, in turn.

A bit late to the party but, the fan patch is only required to fix a game breaking bug that makes inventory disappear or corrupt whenever you play challenges and then get back to your "campaign" savegame again. Changing between these two modes is what causes the bug. Without that patch, Steam players would need to reset the game every time ("Playing a challenge? Cool, now start a new game because you did.").

But we don't even have the Challenge mode on GoG version, thus, the bug cannot happen by design.

tl;dr: Patch on GoG version not required!

A little bit more than challenges, here the changelog of the steam unofficial patch :
=====
Fixed:
- losing drone upgrades
- losing ship upgrades
- autotrader bugs
- black screen when starting daily challenge
- can't install ship upgrades in some cases
- vented scrap bug
- bugs related to vented lures
- can't teleport to a vented room
- shield upgrade no longer breaks when placed on a disabled drone.
- mission timer not starting
- missions where terminals do not work
- custom dronenames.txt file no longer affects drone health in challenges
- noise and color blind mode no longer reset when playing challenge mode
- stutter when killing a lot of slime at once
- slime damage after using sonic
- random starting drone HP in dailies
- random terminal commands in dailies
- random sentry scrap drop in dailies
- fuel access has 100 HP instead of 0 HP
- tow error in a vented room
- some other bugs


Added:
- Daily challenge: view other players' mission time, final/starting drone HP and scrap gained (normal+hidden+sentry) after completing the run.
- Press Shift+Left, Shift+Right, N or P key to view all leaderboard results.

Changed:
- Noise is off by default.
=====

The patch is not needed, because we don't have what's causing the serious bugs to happen in the first place.

The only way you can experience these bugs is by playing the Tutorial, and then loading a savegame. If you play the tutorial once, and only ever play the game afterwards, you won't run into bugs. I've never ran into any of these.

Losing upgrades happens because your stuff is different in challenges & tutorial. Playing that and playing a savegame after overwrites your stuff with variables from the challenge / tutorial.