Thief was the first release by NetEnt of 2013. And, fun fact, also the first release I posted about on this website.
The game came with a female thief that was trying to steal diamonds.
It came with expanding wilds on reels 2, 3 and 4. Which would guarantee a big win when all three would land at the same time.
It also featured two different free spins features. You could either trigger the normal free spins or you could trigger adrenaline free spins where only the high paying symbols would appear.
Both free spins features where great, because the normal free spins still had the expanding wilds, while the adrenaline free spins will only had high paying symbols and a new symbol that payed even higher!
I thought it was a fun game. But it probably didn’t do as well, since it has been discontinued.
Here an old screenshot: