As of right now I would say the game is worth playing, but definitely has work that needs done. For starters, unless you are going out of your way to play on a slower game speed, the game just ends up ending too fast. The 3 Era system is an interesting step away from the regular civ formula, and while I don't hate it, I feel that its a little unbaked and needs more time in the oven. All I am trying to say is that this game is fun, but feels like the game devs intentionally left it a little empty just so they can come and add more content in later to make more money. I wont say anything about the tech tree specifically as to avoid spoilers but my short explanation is that it feels too short, And that is kinda the whole games vibe. Everything feels like it ends right as it starts to get good, even when I switched it to the longest lasting era system it still ended every time I started to get invested into that era. My final comment is this, The game is good but the devs either took, or left a lot of content out that has long since made the civ franchise what it is today, and I suspect they only did that so that they can add it back in later in the form of an expansion and make more money.