What is the procedure of spawning enemies in each round ? TD games

I am making a TD game, I would like to know what is the procedure of spawning enemies per round. I have more than 200 rounds per map just like “fieldrunners”. So is it some kind of hardcoding say for 25 rounds and then repeat the spawning with higher health of enemies or any logic/algo for eg. based on rounds it gives number of enemies and type of enemies which ll spawn in that round. Pls share your experiences.Thnx

First, on which platform do you want to use your game? Depending on the platform, you might change the algorithm althogether to adapt to the platform’s capacity. Or make an adaptive algorytm that selects spawning mode depending on which platform it’s running on.

Second, for “spawning” an ennemy, you might want to check Instantiate.