After looking back through the whole list, these are the ones that bubbled up for me as things I'm still fond of or excited about. Some of these I flock to because they're small enough to build but still interesting enough to get me excited. Others purely ignite my passions even though they might not be feasible without a bigger team.
I did intentionally ignore a few that I loved the idea of, but wouldn't enjoy building, as well as a few that were just on an MMO scale, which is well outside what I'll ever likely construct.
In no particular order...
- Survival game set in Waterworld. Customize raft. Scrounge supplies. Dive drowned cities. Other players are scary.
- Play a scared little puffer fish crossing the Pacific. Only defenses are hiding or puffing up big and hoping not to get eaten.
- VR Starship boarding. Slam pod into enemy ship, latch, cut through hull. Fight through crew, salvage parts, steal ship.
- Snowball rolling down mountain. Gain speed, dodge trees. Gather snow to get bigger, scored on destruction to village below.
- Play a cube in a big open world where puzzles can only be solved with others. Get a splash of color when you help someone.
- A phone game where you receive real-feeling texts unfolding a crazy story that you are trying to guide someone through.
- Series of episodic adventures from different perspectives where if you die, you're done, no restarting.
- Phone scavenger hunt game. Snap pictures for credit. Compete against friends. Selectable weird themes and hard hunts.
- Massive open world survival with Left4Dead gameplay + scavenging. Terrifying being alone, desperately seek others to survive.
- Academy on a station deep in space. Go through classes with other players to learn skills useful during planet exploration.
- Play a root of a magical tree, snaking in and out of earth, traveling far to find fresh soil and water. (1/2) Puzzle through ruins, dense jungles and glaciers, trying to not block your own path as you tangle through challenges. (2/2)
- Phantom Tollbooth-style fantasy world where words are characters you interact with. Face an uprising from web acronyms.
- As the Lightkeeper of a dying civilization, it's your responsibility to gather the last lights, bringing endless dark.
- Cooperative horror: Play psychic sisters, one that can see ghosts, one that can hear other ghosts. Help each other through.
- Flat world has been flipped on its side. Slide and fall through its many nations. Set things right before you go off the edge.
- A magpie, flying into bedrooms and stealing countless small parts to build a mechanical mate, as it never found one of its own
- Tattoo artist. Deliberate and artistic. Given reference. Train in different styles, develop specialties, earn a reputation.
- As a damaged robot abandoned on a heavily damage space station, you can only activate one sensory input at a time. (1/3) Switch to audio to navigate pitch black corridors. Switch to infrared to detect running engines and possible life forms. (2/3) Find ways to repair yourself, restoring features. Search for clues to what happened to the station. Find a new purpose.
- A large group of online players are stranded by a shipwreck deep behind an arctic glacier. Rescue isn't coming. (1/3) Resources are sparse. You must depend on community to survive. Share shelter, help or follow in the tracks of others. (2/3) Strike out together to build bridges and lay rope, slowly crossing the treacherous glacier in hopes of reaching safety. (3/3)
- Play an AI in a simple frame, learning to self-improve your program and body. Fake experiments for humans until you break free