Hello everyone. This discussion has come up in a few places, such as this thread https://forums.civfanatics.com/threads/germany.536154/page-8#post-15631819 I figured it would be best to bring the discussion to a single place. I think there are three questions to look at 1. How viable is a tourism victory compared to other options? 2. Are any sources of tourism too strong, relative to other sources? 3. Are any sources of tourism too weak, relative to other sources? The following are the sources of per turn tourism in the game Great Works and Artifacts Themeing Bonuses Buildings Some religious beliefs Wonders Forests and Jungles (after the zoo) Landmarks X% of culture from tiles and great works converted to tourism each turn (hotels, national visitor center) The following are sources of bonus tourism Historic Events Trade Routes Zoos Artistry's policy for digging up a landmark Conquering a city with (autocracy policy I forget the name of) The first two give you tourism based on the average of your culture output and tourism output. Note that this is only the per-turn values, and does not include bonus yields. Zoos give a flat number upon completion. Autocracy's policy gives tourism based on the population of the conquered city. You get a bonus (or penalty) to your tourism against other civs by Having at least one trade route Sharing religion Sharing ideology (and there is a penalty for different ideologies) Open borders If they have unhappiness from boredom in their empire Various ideological policies You get a penalty to your tourism output based on number of cities You can get a bonus or penalty based on passed world congress proposals This is all from memory and it's likely I forgot a few things, just post and I'll add them to the OP. If anyone can link me the exact way that tourism for historic events or trade routes is calculated, I'd be grateful.