My wife and I used to play board games occasionally with friends a few years ago, but we moved and hadn't played anything for about that long. A couple months ago we started playing games with another couple about once a week and we've gotten really into board games in general. Previously we owned Carcasonne and Ticket to Ride, we've gotten quite a few games in the last couple months.
Forbidden Island: This was the game that kicked it off, we saw it cheap at Target and thought "What the heck, we'll try something new." Had no clue what the game was like at all and it's the first co-op game either of us have ever played. We both thought that it was really cool, and took it with us to visit family on Thanksgiving and it was a hit.
Pandemic: We saw this at Target a couple weeks later and again bought it without knowing anything about it except that it's popular. We got bummed out when we Googled rules on the drive home and realized that it's very similar to Forbidden Island, but it's one of our favorite games now. Really fun to play with just the two of us or just in a group, a lot more tense than FI and the powers are a lot more interesting. Strikes a good difficultly balance too, we haven't lost a game of Forbidden Island (haven't tried the hardest setting though) and we've won about half of our games of Pandemic with one more than the minimum Epidemic cards.
Acquire: I played this a few times with friends when I was earning my bachelors and remembered loving it so I got a copy off Amazon. My favorite by far of what we own so far, you place tiles that represent hotels on a board and buy stocks in the different chains. You feel really insidious fucking people over, and it feels great to successfully get a bunch of an expensive stock for cheap by successfully working a merger in your favor.
King of Tokyo: This was a really pleasant surprise, we found it on sale and I didn't really want to get it because it looked like a kid's game, but my wife works at an elementary school and it wasn't too expensive so we figured she could take it to work if we didn't like it. The game is extremely fun, we played 4 games the night we opened it and a few nights later some friends came over to hang out and we ended up drinking and playing this the whole time.
Tokaido: Beautiful pieces, forgettable game. Luckily we didn't actually buy this one, friends did. I'm glad we got to play it but there doesn't seem to be any interesting strategies, and while you can screw over other players it just doesn't feel satisfying. Until the end of the game there's always more opportunities to gather different cards, and the art is so serene and calming that it feels sort of off to try to be cutthroat.
Evolution: This game is why I'm posting in the thread, I'm wondering what else is out there similar to this. I'd say it's easily the most complex game we've played so far and coming up with card combinations, eating people, and creating a self-sustaining ecosystem only to lose control when someone messes up a key component was all really fun.
Machi Koro: This is another one we got cheap. Seems like a kid's game, the strategy is pretty simple (maximize the expected outcome of each die roll) but it moves fast enough that it's still enjoyable. We'll take this one to the next family gathering and I'm sure it'll be popular like Forbidden Island.
and our most recent game which came in the mail today is Dominion, which I'm really excited to try tomorrow.
I think we're going to cool it on purchases for awhile (we have Takenoko coming in the mail tomorrow and haven't played some of the above games more than a few times) but we are on the lookout for games that are fun to play with just the two of us.
Like I said above, I'm also curious what other games are out there that are more complex along the lines of Evolution. I just remembered while typing this that we also own 7 Wonders, which we haven't had a chance to play yet (rules suggest playing a few 3+ player games before attempting it with 2, and the night we set aside to try it out with another couple was the night we just played King of Tokyo). It looks sort of like a board game version of Civ so I have high hopes for that. I've read good things about Tigris and Euphrates.
Also, I'm curious as to what a "eurogame" is. I see that term used all over the place but haven't seen a definition, and I've seen it used for games like Carcasonne, Ticket to Ride, and Puerto Rico, all of which seem to have very little in common to me.