Features =========== **1. Reproducible** | We provide algorithms that reproduce stably the results of many influential reinforcement learning algorithms. **2. Large Scale** | Ability to support high-performance parallelization of training with thousands of CPUs and multi-GPUs. **3. Reusable** | Algorithms provided in the repository can be directly adapted to new tasks by defining a forward network and training mechanism will be built automatically. **4. Extensible** | Build new algorithms quickly by inheriting the abstract class in the framework.