Ideology in Friction is my personal favourite although I really enjoyed their newest game Eclipse Witch. When that one gets a proper translation it might become my number 1.
Meritocracy is pretty similar to Ideology so those are my top 3.
Samurai Vandalism was a bit janky and some of the art wasn’t up to Oneone1’s usual standard so I wasn’t as big of a fan but it’s still good especially now the Kagura translation is out.
Their older games are good but having played them after their newer games it was a bit jarring. Worth a playthrough if you enjoy Oneone1’s style of games and art but there isn’t much there that you don’t also get from their newer games.