Interesting examples of discrete stochastic games

SGs are a generalization of MDPs to multiple agents. Like this previous question on MDPs, are there any interesting examples of zero-sum, discrete SGs—preferably with small state and action spaces? I'm hoping to use such examples as benchmarks, but couldn't find much in the literature. One example I can think of is a pursuit-evasion game on a graph.

There's also a quite useful project that allows to instance OpenAI gym environments from the declarative description of the environment, states and actions.
• From the definition of the instance (see this gist, file wildlife-preserve_inst_mdp__01.rddl), and the definition of the state variables (see section state-fluents in the file wildlife-preserve_01_mdp.rddl posted in the gist above) the smallest instance in the suite has 2^4 x 4 x 4 x 2 = 512 states. I recommend you too to play around with the rddlgym tool I linked in my answer, will make easier to come to grips with the syntax of RDDL. – Miquel Ramirez Feb 21 '20 at 6:16