There has also been AlphaZero [1], a generalized version of AlphaGo which also has been trained to play Chess and Shogi (all learning from only the rules), and MuZero [2], which is a further generalization which can also play Atari games and does not even use the rules of the game when doing tree search - it has to learn a model of the rules instead.
[1] https://deepmind.com/blog/article/alphazero-shedding-new-lig...
[2] https://deepmind.com/blog/article/muzero-mastering-go-chess-...