CREATE TABLE table_name_2 (release_date VARCHAR, developer_s_ VARCHAR, type VARCHAR, genre VARCHAR)

When did Riot Games release their 3D MOBA game?
SELECT release_date FROM table_name_2 WHERE type = "3d" AND genre = "moba" AND developer_s_ = "riot games"
SELECT "release_date" FROM "table_name_2" WHERE "3d" = "type" AND "developer_s_" = "riot games" AND "genre" = "moba"