What are some alternatives?
When comparing Human Resource Machine and Robocode, you can also consider the following products
CodeSignal - CodeSignal is the leading assessment platform for technical hiring.
CodeCombat - Learn programming with a multiplayer live coding strategy game.
Codewars - Achieve code mastery through challenge.
Colobot Gold - Colobot Gold is modified version of the original https://alternativeto.
LightBot - Coding made Kid-Friendly