One thing that was on my mind when I started playing and what I imagine is in minds of many new players, is the question "why are guilds even any good?". When I started, I could initially not see any direct benefits of it. The game does good job introducing and teaching the game at start via quests, but it makes no mention whatsoever to guilds. So I'm gonna explain the benefits of being in a guild right here:
1) Polishing and motivating. It is the habit in most good guilds to support your guild-mates and if you got 80 players with the mentality of supporting each-other, you can recieve many dozens of polish/motivate support per day. Now a new player with huts and obelisks may not see how huge that benefit can be, so I'll explain it little further.
As you progress further in the game, you will learn that cultural buildings become much more effective per square than cheap decorations. Town space becomes more and more harder to find, so you will be forced to move over to those more effective per space buildings to have space for everything you need to build. But cultural buildings are always very expensive and still take a lot of room in your town, more and more since the happiness requirements increase with every new house. So this is where the action of polish by your guild-mates can become so valuable. Polish doubles the happiness output of a building for next 12 hours. So if you have an active guild you can trust, you can run almost half of the number of cultural buildings you would run otherwise, saving tons of space and resources. Other way of going with this, is asking for motivation. It is particularly effective for players who have big production buildings and often run long duration productions in them. Motivation doubles the resource output of the building for the collect. It is also effective for long duration(8h and 24h) houses. In best guilds you can usually even combine the 2 and have both kinds of support, making your town times more effective than it would be on it's own. You also recieve 20 coins every time you support anyone, and that can add up to thousands of coins per day, a very good amount of extra money earyer in the game.
2) Trading. You have 3 options when it comes to trading. First is trading with AI, but it gives you really really bad deals, taking 10 times profit for you each deal. Another option is trading with your neighbors. When you start off and see you have 80 neighbors in a fresh hood, it may actually seem like it can work, but don't be fooled. You are together with 80 players as fresh as you, and almost all of them will be inactive and quit after first week. Out of the remaining handful, half will be clueless about this game even months later. It will get better as your neighbourhood will start merging with other similar neighbourhoods with players who decided to stick around, but by then very few of those neighbors will be interested in trading with you. Mostly because it costs 1 forge point to trade with neighbors, while trading is free between guild-mates. So most choose guild-mates. It is very different in a guild, where you are matched right away with 80 players who all have same goal as you, and for who it is completely free to trade with. In a guild like Titans: Part Deux, all your trades will be taken care of, usually within hours.
3) Socializing. There is not too much social outlets in this game, so guilds offer perfect opportunity to bond and have some fun. Weather it be just chatting and making friends or asking advice and sharing experiences, you can have it.
