Q: What technologies are used

[xtuc]

We used mainly Golang for performance reasons.

• All the backends (git infrastructure, game engine, game scheduling, ...) are written in Golang.
  • The game engine includes collisions detections, agent physics, visualization rendering, projectiles, ...
• We have our own message broker system written in Nodejs (which suffer from performance issues). We are planning to re-write it in Golang or use a solution like Apache Kafka.
• The visualization of the arena in 3D is made with BabylonJS and written in TypeScript.
• We use HAProxy extensively to handle all the traffic from the outside as well as internal inter-service communications, TLS termination, load balancing and security.
• All the services are running in Docker containers and deployment/orchestration is done using Ansible.
• The website is written in PHP, we used the Symfony framework.
• GraphQL is used internally to exchange data between services.
• We use telegraf, influxdb and Grafana for the monitoring of our platform.