Digital Plinko uses the classic Galton board physics to simulate those...

https://www.slideserve.com/aaron_ward92/what-are-crash-games-and-why-are-they-mentioned-with-plinko

Digital Plinko uses the classic Galton board physics to simulate those satisfying bounces down the pegs. Under the hood, certified RNG ensures every drop is truly random, blending physics with reliable randomness for a fair, engaging experience