CREATE TABLE "free_play" (
  "developer_s" text,
  "release_date" text,
  "required_os" text,
  "genre" text,
  "type" text
);

Question: What type of 3D game was released between 2008-2011?
SQL: SELECT "genre" FROM "free_play" WHERE "type"='3d' AND "release_date"='2008-2011';

Question: When did Riot Games release their 3D MOBA game?
SQL: SELECT "release_date" FROM "free_play" WHERE "type"='3d' AND "genre"='moba' AND "developer_s"='riot games';

Question: When did Masthead Studios release their game?
SQL: SELECT "release_date" FROM "free_play" WHERE "developer_s"='masthead studios';

Question: What operating system was needed for 2D games?
SQL: SELECT "required_os" FROM "free_play" WHERE "type"='2d';

Question: What type of 3D game did Valve Corporation release?
SQL: SELECT "genre" FROM "free_play" WHERE "type"='3d' AND "developer_s"='valve corporation';

Question: What was the minimum operating system required by Stunlock Studios' game?
SQL: SELECT "required_os" FROM "free_play" WHERE "developer_s"='stunlock studios';