Is there a way to remove the DLC from my install so the game is playable again? Currently, in huge games, the only way I'm able to push forward is to make every planet a culture planet, and I still lose planets well behind my culture line.
In lieu of uninstalling the DLC, you could try the quick and dirty fix suggested earlier in the thread by manually setting the low allegiance threshold (i.e. the level to which your allegiance must fall to generate Open Rebellions) to a very low value. You could either create this as a mod or edit the game file directly (in the latter case, I think you will not be able to play multiplayer but single player should be fine).
To edit the file directly, go to your Steam installation folder, then find the folder containing the game data:
Steam > SteamApps > common > Sins of a Solar Empire Rebellion > GameInfo
The file you are looking for is called "RandomEventDefs.randomeventdefs". Open it in Notepad (it's a text file, despite its appearance).
You should see lines of text that specify variables relating to random effects. You want the one in line #7, which is:
"lowAllegianceThreshold 0.3"
Simply change this number to something lower, for example, 0.01 (I don't know if "0" actually works) and save. If you got it right, Open Rebellions should now not appear if your planets do not have allegiance below the number you picked (note: 0.3 = 30% allegiance).
To make a mod, you need to copy the file first and edit the copy (not the original). The file has to be placed within a specially constructed folder that you place in the mods directory: see here for a tutorial. You then need to enable the mod by starting the game and going to Options > Mods. If you have got it right, you should be able to see your mod in the "available" list, and then activate it.
