The guild feature is unlocked after 4-10, at which point you can join or create a guild.
View or manage (guild leader / administrator only) guild information on the left.
You are unable to join any guild for an hour after leaving a guild, or after your guild has been disbanded.
During Abyss Battlefield, you may borrow heroes from other members, or loan heroes to other members.

Guild Level
Task points from all the guild members will be added to guild EXP daily, up to 5,000 a day. Level up a guild to set more administrators and recruit more members.

Guild Pray
3 types are available: normal, advanced and legendary.
All types award technology points and gold coins.
Normal pray is free, while the other 2 require gems.
The number of prayers available is reset daily.

Guild Dungeon
Each guild dungeon lasts a week, with the period determined by the day the server is launched.
Guild members get 2 guild dungeon challenges per day. Rewards are given for a successful challenge, and the number of challenges will not change after a failed challenge.
Guild dungeons include normal strongholds, elite strongholds and boss strongholds. All the members of a guild will get rewards after the guild occupies an elite or boss stronghold.
Each stronghold has several enemies. Defeat all of them to occupy the stronghold and unlock the next available one.
Players may adjust the difficulty of the battle to get more bonus, but the difficulty for elite and boss strongholds cannot be changed.
Players will receive bonus rewards for defeating a new enemy. Occupied strongholds can also be challenged again.
After dungeon reset, unclaimed elite and boss stronghold rewards will be sent via mail.
After dungeon reset, unused challenges will be cleared.
After occupying the boss stronghold of the current week, guild administrators can select the difficulty for next week. The same difficulty will be used if the boss stronghold is not occupied this week.
3 affixes are generated each week. 1 is applied to normal strongholds, 2 to elite and 3 to boss.
Unused challenges are lost after reset.

Guild Technology
There are 5 categories, one for each class.
Each category has 6 nodes, one for each of the stat bonus of that class.
Spend gold coins and technology points to upgrade the node. Reach level 10 to unlock the next node.
Reset technology to get all the gold coins and technology points back. Each category can be reset once for free.
A guild's technology level is the sum of all technology categories. Some technologies require a higher total level to level up.
Leaving a guild does not reset your technology level.