A few additional suggestions
If I may. And a few of these are oldies but REALLY worth a play.
The Longest Journey. Fairly cheap now, and one of the best point and click adventures I remember playing.
FTL: I have heard so many good things about this game, and reading up on it makes me equally erect with joy at the thought of playing it. Just need to wait for payday.
Mount and Blade Again a fairly old game now, but amazing to play. It gets repetative after a while, but there's a solid several hours of addictiveness to it at first, and the number of mods out there keep it entertaining for a long long time.
One thing I'd love to see (any game devs reading) is something akin to a single player space adventure game. Giving players the choice of land or space combat (think mass effect, but you get to control your ship in space) giving players not just the opportunity to outfit their character, but to hire staff to keep the ship running (mass effect + FTL) but to also build and design their ship. Give them starting money, let them design a basic starting ship, then let them upgrade over time. (Don't know any games with this functionality... somebody make it happen)