#5227809 finished earlier this morning. My opponent, ypercube, helped me to try out some things in Xiphias-variants. , ypercube.
This game shows that

• Rockets and Force Fields are not compatible, (In fact a Rocket popping up under a Force Field is the only current way of which I know to destroy a Force Field.)
• a Rocket on a Planet first excludes a Bomb from placement there but does not detonate a Bomb when it pops up on a Planet which already has a Bomb on it -- order of placement matters! ,

&

• a Force Field and a Bomb can be on the same Planet. I think that order of placement does not matter.

In keeping with Number 1 I suggest that Fired Rockets be considered a combination of Rocket(s) & Force Field(s). Maybe they are a one-planet force explosion?

Self-destructs already count as though they are a combination of an Alien and a number of Force Fields to match the Alien's level. Might they actually be Rockets and Force Fields triggered by their own Alien?

Although Unrated Games might not show up in one's game total they do show up in the list of finished games. At least this one shows up at the top of my list of completed Xiphiastrey games.

Now why not introduce more powerful Bombs or Bomb-like things like a triggerable self-detonation which is invisible like a Bomb? We could have three levels of such horrors like the three levels of self-destruction now available. Also such Area Bombs or Invisible & Sleeping Self-Destructs could convert all the planets affected into Neutral Meteors which is even more destructive than a normal self-destruct which leaves ownership intact. How would this affect Force Fields? One could have the Level 3 Effect Destroy all Force Fields it touches.