
Last Train to the Sea
Drive a fairy tram through floating towns and pick up passengers.
9 playable demos you can start using for free, including free plans and open-source options, with pricing checked on each official site.
Short answer
MeetNewAI lists 9 free picks in playable demos. Start with Last Train to the Sea, Salmon Survival, Outerstead, Outermate, VybeNomad. Prices were checked on each official site; free plans can still have paid upgrades.
Every pick below was checked on its official site. Pricing changes, so confirm the current plan before you rely on it.

Drive a fairy tram through floating towns and pick up passengers.

Live a salmon's life in a Nordic river, from hatching to the sea and back.

A colony sim: four survivors, a forgotten world, one settlement to build.

A prison-escape sim where the daily routine keeps running around you.

A digital-nomad life sim: pick a city, take contracts, cover rent and food.

Explore endless 3D islands and collect stardust; everything is generated by code.

Name the country for each flag, then find it on the map.
Build a character, then walk into Willowbrook.
A rocket builder that runs in the browser from its itch.io page.