Link: https://store.steampowered.com/app/2236920/Eco_inc_Save_the_Earth/

You will try on a role of a saving planet fund. Get engaged with the activities which will affect the Earth’s future. Research, think, make your choice and see your results. Save our home and its inhabitants!
Take part in saving our planet together with us!

The player’s goal is to stabilize ecological situation on the whole planet on early stages. And then step by step restore and improve eco-situation of the Earth. In the end of your game you will get your statistics on how successful your mission was. Each step leads to different consequences, you have to make thoughtful actions and fast.

• Study specifications of regions and their exact problems
• Track eco-situations of the Earth’s regions
• Integrate ecological projects
• Send volunteers for help
• Fight negative ecological aspects: poachers, trawlers, smugglers
• Overcome the devastating consequences of disasters
• Encounter new green technologies
• Education game about ecology.

Eco inc. Save the Earth will become a paid game on Steam no sooner than one week after this announcement. We will announce the exact date separately. Players who acquire the free license before the change will keep permanent access.

It's not overly complex but its good fun.

Its quite similar to a nice Plague Inc but without as much interaction and personal anihilation

Just gonna leave this here….

https://play.half.earth/

Feels something like sandwich of Rebel Inc mechanics (government decisions, fightng units, big bad red enemy) with Plague Inc map and money system.