A very big problem.

[Nikoffee]

I was playing Lob corp when suddenly everything froze, I rebooted my pc by forcing a shutdown, when I came back to the game, I was suddenly back to day 1, no research was acquired in the codex and it wouldn't allow me to load day 1 or leave the story's loading page because it would get stuck on the loading screen, tutorial doesn't seem to load either. I have reinstalled the game twice now, and loading screens seem to go on forever. If anyone has an answer to this issue it would be very appreciated.(Kinda salty about losing my E.G.O stuff tho)
Please answer ASAP.

[CarThief]

Hm, sounds pretty awful, hope you weren't too far in yet, losing progress due to sudden shutdowns/crashes isn't particularly uncommon, just hope it wasn't due to the game being a memory-hog somehow (it is pretty unoptimized from what i recall).

Only solutions i could think of is say...
Right clicking the game in Steam and doing a cache/file integrity check (located in the Local Files tab). Detects any broken/missing files and re-downloads them, but this does kinda sound like a missing/corruptes save-data issue, though, so who knows if this works.

Wonder if installing and playing the game briefly on another computer would solve the issue with save data, so that it would download it from the cloud, then you can manually make a copy and put it on a USB or something, then do a cache/file integrity check or reinstall on the computer that got rebooted, manually overwrite the save files, and see if it works?
(As for what counts as a save file and where to find it, it should be at C:\Users\[user_name]\AppData\LocalLow\Project_Moon, Appdata is a hidden folder so you'll probably have to type the extra folder name into the explorer bar or something. All you'd need to do is copy the folder and .dat file named Lobotomy and make a backup, then overwrite those two if needed.)

Might also be possible to just make a backup copy of the save (and put it elsewhere), and then start the game and click the Lobotomy icon on the main menu (that spherical thing with a spike through brain matter), from what i hear, it resets save data, this combined with a fresh install might fix it, and if your save data isn't corrupted you could overwrite the fresh save data with the backup you just made.

Or just wait for a little longer then usual and hope the game eventually loads. It can take a while with how unoptimized it sometimes is. Maybe that more ideas come to mind later, hm...

Edit:
Hm, or is it possible to click the day1 option instead of Continue to prompt the game to just start at day 1 with (most) of your research/equipment/etc still intact?

Worst-case scenario in the case of corrupted save data, you may need to do a total fresh restart by clicking that icon on the main menu that was mentioned earlier. This will probably wipe out all progress, but renders the game playable atleast, presumably. Never really tried it before, don't wanna lose all my progress... :P

[Nikoffee]

Reseting through the Lobotomy icon worked! Thank you so much! (Also I verified multiple times the cache/file integrity)

[CarThief]

Ah, good to know that works in the case of broken save files then. I would suggest making an occassional backup though, never hurts to back up some save files every now and then, especially if the game somehow lagged out and caused it. That way you wouldn't have to do a full restart if it happens again.