| Name of Flag | Description |
| ATTACKABLE | This space object can be attacked. |
| BEAMABLE | This space object can be transported. |
| CAN_BEAM_FROM | Objects can be transported from this space object. |
| CAN_BEAM_TO | Objects can be beamed to this space object. |
| CAN_MOVE | This space object can move in space. |
| CAN_SENSE | This space object can sense other space objects. |
| CATARACTS | This space object has sensors which work at 70% of nominal. |
| CLOAKED | This space object is cloaked, and hence it is much more difficult to see from
other space objects. |
| EVENT_DRIVEN | This space object should be sent event triggers. |
| HAZY | This space object is hard to see. Other space objects receive a 30% penalty
when trying to detect it. |
| HUGE | This space object is on the huge scale. This primarily means it's a planet or
a sun. Huge objects cannot be tractored. |
| INVISIBLE | This space object is not detectable by any other space object. This includes
objects which have the omniscient flag set. |
| MANUAL_DIR | The heading and speed of this space object is calculated by evaluating the
MOVE_DIR and MOVE_SPEED attributes on the space object each movement turn. |
| MANUAL_POS | The position of this space object is calculated by evaluating the MOVE_POS
attribute on the space object each movement turn. |
| NEARSIGHTED | This space object can see (almost) everything within it's sensor range. It
does not include objects set INVISIBLE. |
| OMNISCIENT | This space object sees everything in space, except for invisible objects. |
| PLANET | This space object is a planet. |
| SHIP | This space object is a ship, and may have weapons and shields. |
| TRACTORABLE | This space object can be locked onto by a tractor beam. |