So, today I'v tried to play TB near on 100 times and without fail the client has crashed, every, single, time. Any ideas on why this is happening?

I enter a server and usually I alt tab until it's my turn, but it's continually crashed. I thought it was to do with me alt tabing, so I stopped doing that and it still crashes after being in a sever for about 40 sec to a minute, i have no clue why and its really turning me off the game aha.

Do not fret young grasshopper.
It's fully fixable.
Just uninstall, delete any and all remaining folders pertaining to Toribash.
Reboot your computer.
Come back, install Toribash.
And you should be good.

It happened to me, and I fixed it with that.
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That and your profile pic is too stronk.
Fix that.

Oh yeeezus, delete everything? Including my fantabulous assortment of replays D:?
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heh, heh heh...pingas.

You don't exactly have to delete your replays, if you want them to stay.
They may become corrupt and be messed up anyways.
But its worth the Risk to find out for yourself.

Just make a new folder somewhere else in your database, then try what regotten explained, if it worked for him then there's a change it works for you too

1) If it is there, delete it. If it wasn't there to begin with, just go to the next step
2) Go to your Steam Library (game list) and find Toribash
3) Right click on Toribash and select 'Properties' (usually the last option in the right click menu)
4) Go to the tab called 'Local Files'
5) Click "Verify integrity of Game Cache"
6) Wait for Steam to scan your files and it should download the missing steam_api.dll file.
7) When Steam has finished, run the game
If that does not work, I cant help you.