It fires a massive dose of THC/LSD mixture with some added Advent philosphy thus making the planet inhabituers want to join the Advent.   When you see the shot hit the planet, you should see the alliegience of that planet drop over time.

and if you have the research, it gives you vision of the planet

Deliverance engine seems to be very underrated from my experience.  In a 2v2 game, my ally went on the offensive as Vasari while I mass produced around 6-8 deliverance engines and star bases on my borders. I fended off the enemy advance while my ally harassed them in their own territory, pushing towards the weaker one's homeworld. Eventually when my engines were up, I starting bombing the stronger enemy's homeworld with them, timing the shots perfectly so that I got a continuous effect on allegiance. Eventually he lost control of his homeworld and several surrounding worlds. Unable to break through my defensive line or fend off my ally, the other team surrendered. Screw Illum spam, deliverance is one of the best tactics in the game if you can pull it off correctly.

You mean kostura...Ya pretty much they do nothing.Dont build them EVER.They will not win you games.They are an end game harrasment tool.You will need many to kill anything.Novalith can take out a Hw with 2 shots.It took you 6-8 and an amount of time.

Ya i ment the deliverance when i was talkin.Kostura is best hands down.

IMO, deliverance is best using with invading fleets, since deep into the enemy system, their culture will halt your capture speed considerably even after you taken down the planet, which make it harder to create a stable front line(might just be a little harder). Although this only apply for the original sins. After entrenchment, a star base alone can pretty much help you repel enemy forces.

But then(I apology for keep switching my opinion >.<) since Advent star bases can't be used to create ships, this faster capture might actually helping when invading...

If you can afford to spam deliverance, it can be annoying when you just simply taking down remote planets by simply bring their allegiance down below 0%, and halting the recapture with your culture, while also scouting the area if you have the research done.

I use the deliverance engine primarily as a spying device, right before I invade.

I have yet to try the other superweapons so I can't say if its better or not.

Just to jump on the kostura bandwagon...

I was playing a game where I built 1 Kostura, and used it's ability to stun the defenses on the enemy HW and bypass 3 or 4 worlds of defenses. After building a starbase there, I bombed the world until it had one shot left. I fired the Kostura AGAIN, then blew up the whole HW, and jumped my entire fleet back to my side of the map before his fleet arrived.

Darvin3 is right. That thing is a complete monster (not that I'm complaining)

As a note for the Deliverance Engine...culture rate CANNOT exceed +-.07% per second, no matter the circumstances...

The current Advent envoy can help raise allegiance...though normally this is pretty pointless as most planets are at full allegiance....however I don't believe they raise the max allegiance, their effect works overtime, and it is possible that enemy culture may have to be present for the envoy to even do anything...I'm getting the impression you just want the code for this envoy ability....I don't know how to implement it for a deliverance engine, but I'm sure you could make the rate of change really high and turn the allegiance change to a negative number...

That's a shame...a more instantaneous effect with the deliverance engine would be much appreciated...especially given the power of the Kostura...

Not always an option, RGB, particularly if we're talking about a team game where you have to run through 4 or 5 enemy-occupied worlds to get to the guy who is building the Kosturas. 

Perhaps planetary shields could inhibit the Kostura in some manner?  Even more 'Star Wars', how about allowing superweapons to intercept each other, cancelling attacks....?

The Indifference Engine is heavily dependent on culture itself being effective though, and it isn't.  If you made the Indifference Engine three times more 'powerful' it still wouldn't work.