What 3dSen PC does
3dSen PC is an emulator for NES games that rebuilds each supported title as a 3D voxel scene. Sprites and backgrounds become three-dimensional models, and the scenes are lit in real time with shadows and animated skyboxes. The game logic itself is untouched: the same levels, enemies, physics and rules you remember still run exactly as they did. It is a new way to look at an old game, not a remake or a reimagining of how it plays. The supported library currently covers more than 100 games across platformers, RPGs, shooters, beat 'em ups and puzzle games, with support hand-tuned per title. Named examples include Super Mario Bros, Contra, Metroid, Zelda, Final Fantasy, Duck Hunt, Dragon Warrior, Mega Man, Castlevania, Battle Kid and Micro Mages, plus a number of NES homebrew titles. 3dSen PC does not include ROMs, so you need to supply your own ROM files before anything will run. If you want VR mode as well as the PC mode, that lives in a separate product, 3dSen VR.
Playing together
Steam's Remote Play Together feature lets friends join in over the internet as if they were sitting at the same machine, so one person owns and runs 3dSen PC while others tag along from their own setups. Since the emulator reproduces the original game logic, anything the NES version supported in terms of local multiplayer still works here, which makes it a straightforward way to revisit co-op and versus classics with people who no longer live in the same room. The camera controls are worth knowing about in a group session: you can move, rotate and zoom freely, so whoever is driving can frame the action however the group likes. Quick Save and Load let you stop and pick up again at any moment, and Rollback lets you rewind after a mistake while Fast Forward speeds through slow stretches. That combination suits a couch-style night where people drop in, experiment, and hand the controls around.
Before you start
Get your ROM files sorted first, since the emulator ships without them, and check that the specific game you want is on the supported list — support is tuned per game rather than applied blindly to the whole NES library. The program runs on Windows, Linux and Intel-based Mac computers, so confirm your machine is one of those before committing. Two smaller conveniences round things out: you can export supported scenes as 3D files if you want to look at them outside the emulator, and you can set custom cover art for your games so your library looks the way you want it.