Not long ago I launched a domino chain reaction simulator called Topple. You place domino chains with the mouse, drop in ramps and marbles, hit play, then watch it all fall. It can be as simple or elaborate as you’d like. Save locally or publish to a public gallery to share and view other peoples’ creations. I just added weekly challenges to hopefully give some inspiration as well.
I haven’t had many users yet but interested to see what people think and welcome any feedback. Appreciate you checking it out if it sounds fun to you! 