"Enterprise software needs to be at least $1,000 per seat per year"

Enterprise software needs to be at least $1,000 per alien per shot.

FTFY.

Edit: Other reasons why its not enterprisie enough:

1) It does not run in a server cluster.

2) It does not run using a oracle tripple-redundant database.

3) It does not have a recovery plan in case the city is nuked to ensure that the game can continue playing from just where you left off by restoring from backups.

4) It does not have an audit trail so that any time the spaceship shoots an alien we can point to which accountant did it.