Hey all. Always enjoyed reading everyone's suggestions on more unknown games available during big steam sales.
I'll start off with one that I have been a fan of for a long time: Death Road to Canada
This game is like a zombie action Oregon Trail like game, where you manage supplies and fight through hordes of zombies on your way to the safe haven of Canada. Only US$3.74 right now and well worth it imo!
A Hat in Time: 50% off at £12. A really cute 3D platformer.
Wobbledogs: 40% off at £10. Looks and plays like a pet simulator but is almost more about genetics and seeing what kind of bizarre "dogs" you can create.
Let's Build a Zoo: 45% £9. I've seen this described as similar to a Bullfrog game (think Theme Hospital) and that's good way to put it. It's a zoo simulator, but full of silly humour and things you can do, like butcher your animals for meat. A big feature of the game is breeding, including crossbreeding animals to create hybrids like a snake/pig monster.
Sherlock Holmes vs Jack the Ripper: 80% at £2. It's an old game and the dating shows, and nor is it a brilliant masterpiece of writing (it's Sherlock investigating Jack the Ripper after all) but it does scratch the detective game itch. It's fun to explore London as it was in Sherlock's day, and it does provide its own theory as to who Jack the Ripper was, as well as laying out the events in a way that are much easier to follow than reading a book. I'd recommend it for true crime and mystery fans and I look forward to the other games in the series.