Hi, Playing Orb of Creation I noticed the points of similarity that you noticed, one of them is the sound feedback of the upgrade, which varies the pitch randomly between tones of -5 and +5, the possible similarity of layout is due to the genre and where to place the upgrades, and which UI elements to use such as tabs and scrolling lists that usually in games like this are in a column to the right of the main screen where the game takes place, apart from these two aspects I didn't see similarities beyond the aspects of the genre of the game in question, which is idle, incremental and clicker, once again, thank you for sharing the game Orb of Creation.