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The SaplingNewsPatch v13.40
In-game event

Patch v13.40

The Sapling · published 10 Jan 2026, 07:21 UTC · build 21446740

All newsPlayers around this dateRead on Steam

This is the first time the new movement update is available to everyone, regardless of whether you chose the beta. A quick overview of all new features:

Watch on YouTube

This is what has changed since the movement update patch last week.

Fixes for juveniles and the red torso length handle in the animal editor

  • When changing posture of adults, and juveniles have the same posture, also change it for the juvenile... fixes unexpected behavior and ALSO prevents crashes related to accessories on top (thanks, Shemariguess, al!)
  • For juveniles, have the handle at the correct position also when the posture is different from the adult form
  • Fixed handle initially not responding when looking at the juvenile form of an animal
  • Made sure the handle is at the correct position when entering the editor

Various fixes for volcanoes

  • Fixed not being able to highlight a volcano directly after creating it
  • Moving a volcano now also moves the hole (thanks TaterTot, Mike the Drawman!)
  • Fixed problem with hability calculations that caused volcanoes to be linked to existing landmass indices (thanks TaterTot!)
  • Volcanoes that were removed by the player can no longer erupt (thanks TaterTot!)
  • Volcanoes no longer remain highlighted after you selected which one should erupt

Fixed various unlocking mechanics

  • In the plant editor during the scenarios, the correct plant traits are unlocked also when mutating a plant two times in a row (thanks TaterTot!)
  • Sandbox mode now requires finishing the first scenario again
  • You can no longer click and play scenarios that are not unlocked yet (thanks VoidHydra!)
  • The 'cool completionist' achievement is now only awarded when all scenarios are actually beaten (thanks VoidHydra!)
  • Fixed the 'Courageous Carnivore' achievement never firing (thanks al!)

Fixes for the sandbox

  • Disaster panel: moisture button no longer influences ocean moisture level
  • When randomly generating a planet, gravity is now also randomized instead of always being super strong (thanks TaterTot!)

Misc

  • Made sleeping and giving birth animations slightly less weird for upright animals (thanks Parrokeet!)

I often forget to read comments below release notes, so if you have questions, suggestions or bug reports, feel free to reach out via the Steam forums or [email protected].

More from The Sapling

Other announcements

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Esports30 Jun 2026The stream is almost halfway! Watch together with the dev in 2 hoursAs you might know, at the moment I'm running a long livestream, simulating evolution 24/7. It's all epxplained in this video: We've been able to follow the planet Wright-2b for almost a week now, and the moving continent (named 'Rupert' by the community) is about halfway its journey. Many interesting things are happening, like: · The two main continents are each hosting their own plant family:…Esports25 Jun 2026Wright-2b is live!Streaming evolution simulation indie game The Sapling, 24/7 for 2 weeks: We started on planet Wright-2b with a simple alga and underwater animal, turned on random mutations, and now we watch what evolves. Introduction to the project: Introduction to the world:Game update16 May 2026Patch v13.71Balancing and fixes for animals · Various legs besides the body now have special requirements for the animal to have more than 1 set of limbs, to make them look more natural (already in the previous patch logs, but now it's working) · Sessile animals with moving juveniles now actually move to the ocean floor and stop moving as adults (thanks, Cody Beaver, Cringus Ringus, Spectator, Acarlis, mic…