CREATE TABLE table_66310 ("Year" TEXT, "Arcade" TEXT, "Standalone" TEXT, "Console" TEXT, "Computer" TEXT)

What is the Standalone in the year when Space Invaders is the Console?
SELECT "Standalone" FROM table_66310 WHERE "Console" = 'space invaders'
SELECT "Standalone" FROM "table_66310" WHERE "Console" = 'space invaders'