How does the stamina system work in NTE?

NTE's stamina system works similarly to other games in the genre: 1) Stamina has a cap and regenerates over time (usually 1 point per 8 minutes); 2) Running material domains consumes stamina; 3) Excess stamina stops regenerating, so use it promptly; 4) Premium currency can be used to refill stamina. Planning stamina usage wisely is key to efficient progression.