@JorgeStolfi I think you're referring to:
The Wall of Darkness by Arthur C. Clarke.
https://scifi.stackexchange.com/questions/63411/what-is-the-geometry-of-the-universe-in-the-wall-of-darkness-by-arthur-c-clark
Though I'm not sure if the planet in that story exactly fits the topology you describe.
#SciFi #TopologyPunk #ArthurCClarke
#scifi #topologypunk #ArthurCClarke
Randomly, here's a roundup of a few weird-perspective simulations and games I'm aware of. Add your own if you you feel like it. 1/x
#noneuclidean #perspective #topology #topologypunk #portals