The game was very successful and spawned a whole series of titles.

The game has spawned annual fan conventions around the world.

The game has spawned a written adaptation and related merchandise.

The game later spawned a number of sequels and expansion packs.

Instead, the game spawns even more enemies if the player kills a woman.

Nevertheless, the game spawned two sequels, released in 2001 and 2003.

The game spawned a series of follow up games which were released throughout the 1980s.

The game spawned a special promotional vinyl album during July 1997.

The game has spawned several written adaptations and related merchandise.

Instead, the game automatically spawns you close to the action.