Status
SteamPeaks
ChartsSalesUpcomingPatchesNewsCalculator
New on SteamEvery app, DLC and depot the minute Steam creates itAppsEvery app on Steam, newest change firstPackagesSubs and bundles, and what each containsDepotsDepots, manifests and install sizesTagsSteam's user tags and the games under themDevelopers & publishersCompanies and their cataloguesTechnologiesEngines, SDKs and anti-cheat found in the filesChange historyEvery PICS changelist as it lands
SignalsNineteen readings of the whole catalogueCompareAny games side by sideRecordsAll-time peaks and the days they were setReportsWeekly and monthly write-upsAlerts & newsroomWatch a game, get told when it movesSteam statusIs Steam up, right nowWeb API explorerTry the endpoints in the browser
NewsSteam's own announcements and the sales calendarCalculatorWhat a Steam account is worth, and its pile of shame
/
Sign in
/
SteamPeaks
The ultimate resource for Steam data.
ExploreChartsSalesSales and festsUpcomingPatchesNewsRecordsTrendingSignals
DatabaseAppsPackagesDepotsTagsDevelopersTechnologiesChange history
ToolsCalculatorCompareSearchAlertsSteam statusAPI
SiteMethodologyFAQDiscordSupportSign in via Steam
Not affiliated with Valve or Steam. Game names and artwork belong to their owners. All times UTC.
PrivacyCookiesFair useStatus
The SaplingNewsPatch v13.44
Game update

Patch v13.44

The Sapling · published 3 Feb 2026, 19:48 UTC · build 21768695

All newsPlayers around this dateRead on Steam

Overhauled optimization mechanism that decides which 3D models to show

Building procedural 3D models on the fly is expensive; on most modern hardware, showing an accurate model for each plant and animal in realtime is not feasbile. Therefore, as an optimization mechanic, until now only populous species got their own models, which was an acceptable approximation for some time. However, ever since I made a change to how speciation works a few years back, causing many more species, a lot of players noticed this optimization mechanism partly ruined the gameplay experience for them. The revised speciation patch two weeks ago, which significantly decreases the number of species, was already a first phase to fix this problem. This week, I take it a step further and introduce a revision to the mechanism itself.

In this new approach, the game will still prebuild the most populous species; the main difference is what happens if the species model is NOT available. Before, it would default to the most used species. Now, instead, it will use a so-called 'library profile', which is a summary of the most important bodyparts. For animals, this entails which eyes, mouth and limb the animal has. If an animal with a similar profile is available, it will be used. Otherwise, the game will quickly create it from scratch and store it for later.

Changes to animal mutation

  • Made the threshold for animal speciation more dynamic, so it happens earlier when there are fewer species (thank you, Flyer24, SethMMX, CommonRaccoon, AntRuler13, Ewumd68, Liam, QuaLITyCli!)
  • Fixed a problem where in some cases animal mutations happened so often that subspecies never got populous enough to form a new species

Made it easier to keep your species alive

  • Lowered the energy cost for animal babies for larger species
  • Lowered the energy buffer size when giving birth (extra required energy, so the mother does not immediately starve afterwards), in particular for older animals

Started a project aimed at making the simulation easier to understand

  • Revised the tooltips for the sandbox panel buttons and made them show up earlier (from 2 seconds to 3/4 second)
  • Added various new and more detailed tooltips to the planet editor
  • Added various new and more detailed tooltips to the plant editor

Misc

  • Limited the egg laying animation to walking animals
  • Fixed an animal editor bug that occurred when adding a sessile foot to upright juveniles (thanks, DJ_999!)

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

All news
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…