Timeline/minus35
This is faux namespace "Timeline" used in Timeline
An interdimensional traveler from an alternate earth crash lands a portal traveling vessel in the American Midwest. The traveler dies, the vessel is appropriated by the US government and starts a chain of research. The technology is very similar to Earth tech of the 1990s, but the actual dimensional travelling technology is as-yet undeveloped, and there are examples of equivalent but divergent energy technologies: there is a simple but functional high-capacity fuel cell on board, using mostly Earth accessible designs but with a few exotic components that will take time to reverse engineer.
NOTE: Technologies from the crashed vessel should all be related in some way to dimension folding: dimensional heuristic AI, dimensional folding for power storage, or actual portals all come from here.