Sindome

Set in a dark gritty world in the year 2103, Sindome takes place in Withmore City, a geodesic dome city built in the wastelands of lower California. The face of the earth has been scarred by climate change and many great cities have been submerged due to the rising oceans. Sindome is all about playing a role in the struggle of the haves versus the have-nots. Characters fight for survival, carving out a niche in the underworld for themselves.

From the Sindome website:

The corporations have grown larger than the countries they were once entities of, their wealth and power allowing them to build a refuge away from the chaos that has befallen the globe. Once invested in their failed salvation, a city was born out of their necessity to turn a profit. The blood, sweat and very lives of the first citizens a testament to the inequality that has existed since its birth, the city teems with the overflowing masses of corporate drones and ramshackle destitute. With the law empowering its patrolmen to be judge, jury and executioner, the haves have a distinct advantage over the population that is forbidden from owning fire-arms themselves.