While many of these games are lesser known, they mostly get great reviews on Steam. Many of these titles work on Mac & Linux.
Includes the following;
- Frozen Synapse Prime (2-Pack) - mixed reviews on Steam (mainly as is just a graphical refresh from older versions of Frozen Synapse) - Metacritic 7.8
- Drakensang: The River of Time - can't view Steam page (due to region blocking as per commment by @Gravy, though it does activate OK) but gets 8.7 on metacritic - http://www.metacritic.com/game/pc/drakensang-the-river-of-ti…
- 140 - very positive on Steam - Metacritic 7.4
- Vertical Drop Heroes HD - very positive on Steam - Metacritic 8.0
- Riptide GP2 - very positive on Steam - Metacritic 7.7
- Lilly Looking Through - very positive on Steam - Metacritic 6.5
- Boson X - very positive on Steam - Metacritic 7.9
- Two Digits - positive on Steam - Metacritic N/A
- Visibility - positive on Steam - Metacritic N/A
- Smugglers 5: Invasion - mixed reviews on Steam - Metacritic N/A
From what i remember Drakensang River of Time was regionally blocked (from purchasing)for Australians at one point for some reason. maybe thats why we cant see it on store.