Hills, mountains and volcanos could be made off limits for canals. Forests and jungles could first have to be converted to plains or grassland. Additionally, building canals could be made very time consuming by having their basic build factor high. And further, there could be a per turn maintenence cost per canal per tile transversed. Say 1 gpt. These ideas would probably mean the AI programming would have to be smartened up some.
Making rivers traversable by water units. I would have water units need to have a flag checked to allow them to use rivers so only specific ones could and large ships, like battleships could be made not to be able to. This means that the river sections of canal paths would have to be built as canals and be canals in the game, or certain ships wouldn't be able to use the canals. Perhaps a way to solve this would be to make building canals along existing river terrain less time consuming to build initially when the workers build the canal.
I thought of something I would change about the Republic (and Democracy, I suppose) to make it less of an uber go-to government. If the military support limit was an actual limit, possibly with workers exempt, i.e. if your limit is 22 units, you can't have more than 22 units (not you can only have 22 free, but 22 total). I think that would make Monarchy more of a viable choice.
If the object of the game is to keep Monarchy competitive all the way through, yes.
I'd like the game to encourage more government changes and more government variety, and one way of doing that is to have significantly better governments come in later on, as some of the larger and more popular mods do.
I thought of something I would change about the Republic (and Democracy, I suppose) to make it less of an uber go-to government. If the military support limit was an actual limit, possibly with workers exempt, i.e. if your limit is 22 units, you can't have more than 22 units (not you can only have 22 free, but 22 total). I think that would make Monarchy more of a viable choice.
I would be open to this fix: Any AI units (non ROP) that are more than two tiles inside my territory can be attacked and killed/captured with no damage to any reputation rating. No DoW would be needed or required; it would be a 'free' attack. It would be 'assumed'evil
that they became defectors to my civ.
I like that idea, but I would make it independent of culture, as settler pairs show up before culture becomes prevalent. Another way might be like jungle, only it be a pretty decent chance of dying or assimilating every turn for units in foreign territory, maybe based on the size of the group. Like a group of 2 be 25% each turn, 2-5 20%, 6-10 15%, and 11 or more be 10%.How about a chance that AI units wandering your turf do actually defect, cumulatively increasing every turn, and increasing or decreasing depending on how strong your culture is compared to their civilisation's culture (and maybe on other things too like government type) ? Something that would be a difficulty for invasions but not a major one, but that would make endlessly wandering settler/defender pairs a doomed strategy ?
I think that change to republic would do more than make monarchy competitive throughout. I just used Monarchy there because most people seem to operate under the principles of changing once and changing early, thus making the choice between republic and monarchy.
This has probably already been said, but I would change the I'm the AI and I Can Trespass and You Can't feature. I just want the AI to walk around my borders like I have to walk around his. If my settler pairs cannot take a shortcut through AI Land, then the same restriction should apply to the AI. The Civ4 fix, Open/Closed Borders, is a nice idea, but the not the proper solution for this irritating AI behavior.
Is it a game-breaker? No. Just a nuisance.
I would be open to this fix: Any AI units (non ROP) that are more than two tiles inside my territory can be attacked and killed/captured with no damage to any reputation rating. No DoW would be needed or required; it would be a 'free' attack. It would be 'assumed'evil
that they became defectors to my civ.