We just played Oceanos for the first time --- with 2 players. We might be missing something, but it seemed like very few cards came into play. We missed that the "end of round player aid" had a base that could be used for upgrades, so we didn't have periscope upgrades. It seems that this only works for 2 if both players upgrade their periscopes immediately after round 1. Am I missing something? So wanted to like this game, but was disappointed. All our games have to play well with just 2.
OK -- just read the rules file (had only seen video before), and we weren't playing it right. Definitely gonna give this another chance!
I think it is a good game, although it's even better with 3+ players. Then the captain mechanics gives you some funny options. It's certainly playable on 2 but I do think there are a lot of other games that plays better.