If you have trouble installing upon recent version of OpenSSL, try to follow https://github.com/TrinityCore/TrinityCore/issues/21350#issuecomment-363150020 solution

You will need MySQL Strict Mode to be disabled (specially if you use mysql 5.7 or higher).

Supported Client Version

Check https://github.com/TrinityCore/TrinityCore (top of the page) to find the exact game client version supported in each branch.

Development State

The name TrinityCore gives to development branches is usually in n.n.n format, in which the ns represent numbers of the supported client version. At the moment there are two active branches of TrinityCore:

• master targeting   Choose this if you want to follow the latest developments from the community, but be conscious that it is still at the beginning and things may change in a day and a lot of things are totally broken and it lacks a lot of content.

• 

• 3.3.5 targeting   (Wrath of the Lich King game client)Choose this branch if you want to test an almost-rock solid server for one of the most loved expansions of the game of all times. This branch is the only playable.