Life & fun · February 26, 2020

Just One Earth
We only have one earth. Let's save it. 🌏🔥
Just One Earth launched on February 26, 2020 with 135 votes, #178 of 3,162 launches that month and more than 90% of that year's launches. The site was not reachable when checked in September 2026.
What it does
Spend that Green is a game where you make some life choices, and try to stay under your allotted monthly carbon budget. Mother Earth is a game where you play as Earth trying to save the humans from mass extinction while climate change progresses.
Does a similar job
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- ICI created a Mars colony RPG based on Kim Stanley Robinson’s Mars booksFeb 2026 · underhillgame.com · ▲307
I built a desktop Mars colony survival game called Underhill, in homage to Kim Stanley Robinson's Mars trilogy. Land on Mars, build solar panels and greenhouses, and try not to pass out during dust storms. Eventually your colonists split into factions: Greens who want to terraform and Reds who want to preserve Mars. There’s Chill Mode for players that just want to build & hang, and Conflict Mode that introduces the Red v. Green factions. Reds sabotage, the terrain slowly turns green as the world gets more terraformed. Feedback welcome, especially on performance and gameplay!

Terra Firma, a playable erosion simulation2023 · store.steampowered.com · ▲229It's free to play on steam, but you'll need a computer with a dedicated graphics card. I just released a new version after first releasing it 18 months ago. It's been a hard slog to scrounge time as it's not my day job but that's life. There's a ton of obvious improvements in the future (weather systems, temperature, varying rainfall, ice/snow, more biomes, more plate tectonics, lava, etc) but all suggestions/feedback is welcome.
Solutions: The Game2022 · solutionsthegame.com · ▲68A game that sparks hope and action for the climate
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