Recs.
Updated
Race for the Galaxy is a strategy boardgame where players advance their empire by playing cards to build technological developments or to settle planets. Its core mechanic is a phase choosing game. Players secretly and simultaneously determine which one of seven phases they will lock in, all reveal at once, then execute the phases in order. Will you build an engine to ramp up VP generation on cheapo production planets? Will you invest in exploration and settle rare and valuable VP rich planets? Or will you rush a military conquest to cut off your opponents before they have a chance to develop their strategy.
SpecsUpdate
Pros
Pro Deep and strategic
Race for the Galaxy is deep and offers plenty of room for customized strategies, so those who enjoy more advanced games should really enjoy it.
For example, you may put together an intelligent play by trying to predict which phase your opponents are going to choose on any given turn. If your opponent controls an area that allows them to trade resources for cards, they might choose the Trade Phase that turn. Since all players can participate in any other player's chosen phase, you may want to counterplay with the Settle Phase so you can join the area and take advantage of the trade too.
There are hundreds of scenarios like this. The amount of sheer strategy and paths to victory combined with the random nature of cards can create plenty of interesting and deep gameplay sessions.