Goliath OXP

From Elite Wiki

Small tester OXP for larger turrets/cannon weaponry.

Goliath 1.png
Goliath 2.png


A small tester/demo OXP concerning larger turrets/cannon weaponry, and the feasibility for "dumb" cannonball type munitions in the game.

Features a static space-born police cannon ship, which will lock onto targets (aliens, pirates and fugitives, plus anyone committing offenses within its range) within a 15km range and attack them. It fires energy bolts which damage on collision (see Comments, below). For a given "value" of attack, as at times it has problems hitting the broad side of a dodecahedron station!

Note that they do not (yet) check whether anything is in the way between themselves and their targets, so don't get in the way!

Included is a small populator script which will add a turret into interstellar space encounters when Thargoids are present (force a mis-jump to see), or alternatively they can be spawned with the Debug OXP using the role "goliath_turret".


This OXP is released under the Creative Commons Attribution - Non-Commercial - Share Alike 3.0 license with the following clauses:

  • Whilst you are free (and encouraged) to re-use any of the scripting, models or texturing in this OXP, the usage must be distinct from that within this OXP. Unique identifiers such as (but not limited to) unique shipdata.plist entity keys, mission variables, script names (this.name), equipment identity strings (EQ_), description list arrays and entity roles must not be re-used without prior agreement. Basically if it's unique or would identify or overwrite anything in the original OXP, then you may not re-use it (for obvious compatibility reasons).
  • rebundling of this OXP within another distribution is permitted as long as it is unchanged. The following derivatives however are permitted and except from the above:
the conversion of files between XML and openStep.
the merging of files with other files of the same type from other OXPs.
  • The license information (either as this file or merged into a larger one) must be included in the OXP.
  • Even though it is not compulsory, if you are re-using any sizable or recognisable piece of this OXP, please let me know :)


As this is a demo OXP the concept and methodology is free for anyone to use. It is a little delicate concerning launching (collisions between the turret and the bullets) and the stats of the bullets themselves, so beware if you're making adjustments.

Also as the bullets physically crash into the target (when they hit), it isn't possible for them to do damage directly other than small collision damage. The use of the normal missile damage methods do not work as the bullet is dead by the time the AI gets to that stage. Hence in the scripting the collision spawns a secondary entity (the explosion) which is repositioned to the target and that then does the energy damage like a normal missile. A little convoluted, but the only way to inflict damage properly to NPCs and player ship.


Unzip the file, and then move the folder "Goliath.oxp" to the AddOns directory of your Oolite installation. Then start the game up whilst holding down shift until you see the spinning Cobra MkIII screen.

Due to the script commands involved, this OXP requires Oolite version 1.74 or higher.