Hiyo Slimes!

The SlimeVR wheel continues to turn, with our second shipment of 2026 arriving at Crowd Supply last month after its surprisingly fast journey all the way from our SlimeVR Netherlands HQ. Shipment 16 was another big one, with over 3400 tracker sets and nearly 2000 upgrade sets!

Many sets are in-stock and ready for immediate shipment, and we are working hard on keeping them in stock with Shipment 17 on the horizon.

In other news, our campaign just passed 10 million USD! This is such an incredible achievement and wouldn’t be possible without all of you who have purchased SlimeVR and shared your love for all things SlimeVR in our community and to the world. We wouldn’t be here without your support, so we would like to extend a big thank you to all of your reading this. 💕

SlimeVR on YouTube

SlimeVR recently took to the YouTube stage, being featured in the latest Virtual Show Production podcast to explain the technology behind how SlimeVR works, and answer questions about our upcoming Butterfly Trackers. It’s a very interesting watch if you love SlimeVR and want to learn more about the technology behind it.

We have two more important videos, both reviews of our upcoming Butterfly Trackers. The first of these is showcased by the frenetic Kokou. It’s an energetic, cute, and entertainingly unique take on what’s so exciting about Butterfly Trackers.

It’s not too long, so we highly recommend checking it out if you are interested.

The second of these is showcased by Gago, a very unique creator with a quirky but silly style that leans less on specs and stats, and more on the experience of using Butterfly Trackers compared to old SlimeVR Trackers.

SlimeVR Server

Our server software just keeps getting better, with improvements everywhere constantly being added. Just recently we launched version 19.0.0 of our SlimeVR server software, which overhauled the core WebUI system to Chromium. This led to big improvements in the Linux experience in particular, as we managed to stomp out a bunch of longstanding Linux stability and memory bugs. Not only does this make installing and running on Linux easier and smoother, it will also make future development much faster with the improved dev-tools! Win-win.

Why such a drastic overhaul just for Linux? Well the big news is that we are launching on the Steam store very soon! That means auto-updates, cloud storage, and all the other good stuff that comes with Steam. Oh, and if you were thinking of getting a Steam Frame when it comes out, look forward to one click installs, right on the headset!

We are already on the Steam Store, so go wishlist us if you are interested for when we launch in the next couple of weeks: https://store.steampowered.com/app/3245490/SlimeVR/

Meanwhile, after the fantastic launch of v19.0.0 and v19.1.0, we are already testing v20.0.0 for release soon. It includes lots of fixes for some of the more common bugs with v19, such as config and java errors, as well as a giant list of new additions and Quality of Life changes, including but not limited to:

• Settings quiz on start-up to preconfigure your settings for what you plan to use slimes for (PCVR, standalone, vtubing, mocap, etc).
• Fix for a fairly common floor clipping issue in some setups (base-station tracked headsets). Also makes tracking in Steam-link much better.
• Very important spelling mistake was corrected. Everyone really liked this one.
• Fixes, warnings, and safeguards for lots of common issues, such as SteamVR hand trackers being enabled, onboarding not saving as complete, DIY tool firmware sorting, and a few minor GUI inconsistencies.
• More groundwork to prepare for steam release.
• Fixes for OSCQuery to make it more reliable.
• Many many more changes.

We have lots more amazing stuff on the horizon too, including a new alternative method of doing mounting reset which involves simply stepping forward one step. This can be used instead our current ski pose to calculate the tracker orientation on your body, and is already undergoing public testing in the Beta section of our discord. I will include highlights of this in upcoming newsletters when its more ready for you to see!

SlimeVR Butterfly Trackers

Development progresses smoothly on our next generation of full-body trackers, with many parts in either late development, in pre-production (i.e. soon to be ordered), or already in mass-production.

We’re preparing a detailed update about the current progress, plans end estimates, to be posted soon on the Butterfly Trackers Crowd Supply page, so please follow it if you want to follow the progress and learn all the latest news! Much like we did with the original SlimeVR campaign, we keep all of the process open and transparent, we share the struggles we face and solutions we find, show behind-the-sceenes progress and yap about the future, so definetely follow us there and in Discord!

Thank You for Reading

You got all the way to the bottom, well done! Have a gold star ⭐

As usual, join our Discord server for weekly updates and other news! If you don’t have Discord or don’t want to join the server, we have started to post updates and other cool stuff to our social networks as well! Follow us on Bluesky, Reddit, and YouTube for regular updates, news, and other cool stuff! We’re also on TikTok, Mastodon, and Tumblr!

See you next time, from the SlimeVR team! <3
-Spazzwan