https://virtastic.app/blog/ Releases and engineering write-ups from Virtastic: open-source desktop apps running in your browser. en Fri, 30 Oct 2026 12:00:00 GMT https://virtastic.app/blog/d2-web-diablo-2-in-the-browser/ https://virtastic.app/blog/d2-web-diablo-2-in-the-browser/ Fri, 30 Oct 2026 12:00:00 GMT We reimplemented the Diablo II: Lord of Destruction 1.13c engine in C++ and WebAssembly, added the quality-of-life features players have been patching in for twenty years, and put it one link away. Bring your own game files. Act 1 is playable today. https://github.com/Virtastic/openmw-web/releases/tag/v1.7.19 https://github.com/Virtastic/openmw-web/releases/tag/v1.7.19 Thu, 29 Oct 2026 12:00:00 GMT Installing a mod again replaces it instead of adding another copy. Uploading the same archive a second time (for example Tamriel Data after an install you weren't sure finished) used to install a... https://github.com/Virtastic/openmw-web/releases/tag/v1.7.18 https://github.com/Virtastic/openmw-web/releases/tag/v1.7.18 Wed, 28 Oct 2026 12:00:00 GMT Other players look like themselves again. Since 1.7.0 every other player in multiplayer was drawn with the same stand-in body, which in the retail game is a Dark Elf, whatever race and face they had... https://github.com/Virtastic/openmw-web/releases/tag/v1.7.17 https://github.com/Virtastic/openmw-web/releases/tag/v1.7.17 Tue, 27 Oct 2026 12:00:00 GMT No more purple buildings or holes in the ground on self-hosted servers. When a game file took too long to arrive from a busy server, the texture or patch of ground it belonged to was replaced with a... https://github.com/Virtastic/freecad-web/releases/tag/v1.0.9 https://github.com/Virtastic/freecad-web/releases/tag/v1.0.9 Mon, 26 Oct 2026 12:00:00 GMT FreeCAD 1.1.3 in the browser. Fixes found in a full review of everything since v1.0.0. Server files: saving works for everyone. https://github.com/Virtastic/freecad-web/releases/tag/v1.0.8 https://github.com/Virtastic/freecad-web/releases/tag/v1.0.8 Mon, 12 Oct 2026 12:00:00 GMT Opt-in server files (FCWEBFILES=1, off by default) and a published session image, ghcr.io/virtastic/freecad-web-session. Engine artifacts are unchanged from v1.0.7. https://github.com/Virtastic/freecad-web/releases/tag/v1.0.7 https://github.com/Virtastic/freecad-web/releases/tag/v1.0.7 Sat, 10 Oct 2026 12:00:00 GMT FreeCAD 1.1.3 wasm build from run ../release-bin. GL patch table applied; wasm name section kept (--profiling-funcs) so error reports carry function names. gmsh/ccx carried over from v1.0.6. https://github.com/Virtastic/freecad-web/releases/tag/v1.0.6 https://github.com/Virtastic/freecad-web/releases/tag/v1.0.6 Wed, 30 Sep 2026 12:00:00 GMT Install files now pin the current image. setup.sh, setup.ps1, docker-compose.yml, the README and QUICKSTART all pinned ghcr.io/virtastic/freecad-web:1.0.0, and the documented download commands... https://virtastic.app/blog/bringing-legacy-desktop-software-to-the-browser/ https://virtastic.app/blog/bringing-legacy-desktop-software-to-the-browser/ Tue, 29 Sep 2026 12:00:00 GMT A field report from porting FreeCAD to WebAssembly: the business case, the measured results, and the engineering behind it. Written for the executive deciding whether to do it and the engineer who has to. https://virtastic.app/blog/past-the-4gb-wall/ https://virtastic.app/blog/past-the-4gb-wall/ Tue, 29 Sep 2026 12:00:00 GMT A field report on compiling OpenMW and its whole dependency stack to wasm64: the bugs that printed nothing, the measurements with their conditions, and what it costs. https://virtastic.app/blog/calculix-fortran-solver-in-the-browser/ https://virtastic.app/blog/calculix-fortran-solver-in-the-browser/ Mon, 28 Sep 2026 12:00:00 GMT CalculiX, a 977-file Fortran finite-element solver, running client-side in the browser. What it took, how we know the answers are right, and what is still open. https://github.com/Virtastic/ja2-web/releases/tag/v1.0.4 https://github.com/Virtastic/ja2-web/releases/tag/v1.0.4 Sun, 27 Sep 2026 12:00:00 GMT A sweep for more bugs of the same kinds as #5, #6 and #8. UI off-screen on non-battle screens (same class as #6). https://virtastic.app/blog/freecad-web-1-0/ https://virtastic.app/blog/freecad-web-1-0/ Tue, 22 Sep 2026 12:00:00 GMT FreeCAD 1.1.3 compiled to 64-bit WebAssembly. Every workbench, FEM that meshes and solves in the tab, the Addon Manager, a share link that opens your model for anyone, and an MCP endpoint so an AI can drive it. Released today, LGPL, one Docker command to self-host. https://github.com/Virtastic/jk2-web/releases/tag/v1.1.0 https://github.com/Virtastic/jk2-web/releases/tag/v1.1.0 Mon, 24 Aug 2026 12:00:00 GMT Full Changelog: https://github.com/Virtastic/jk2-web/compare/v1.0.1...v1.1.0 https://github.com/Virtastic/jka-web/releases/tag/v1.1.0 https://github.com/Virtastic/jka-web/releases/tag/v1.1.0 Mon, 24 Aug 2026 12:00:00 GMT Full Changelog: https://github.com/Virtastic/jka-web/compare/v1.0.1...v1.1.0 https://virtastic.app/blog/openmw-web-v110/ https://virtastic.app/blog/openmw-web-v110/ Wed, 19 Aug 2026 12:00:00 GMT The biggest update since launch. Upload your copy of Morrowind once and play it on any machine you sign in from, saves included. Plus multiplayer, which Morrowind never had. https://github.com/Virtastic/ja2-web/releases/tag/v1.0.1 https://github.com/Virtastic/ja2-web/releases/tag/v1.0.1 Fri, 07 Aug 2026 12:00:00 GMT Cloud Locker: sign in once, upload your own Jagged Alliance 2 data, and play it from any machine with your saves synced. https://virtastic.app/blog/jagged-alliance-2-in-the-browser/ https://virtastic.app/blog/jagged-alliance-2-in-the-browser/ Mon, 03 Aug 2026 12:00:00 GMT Own Jagged Alliance 2? Point a browser at your copy and play it. The open-source Stracciatella engine recompiled to WebAssembly: full campaign, tactical combat, nothing to install. https://virtastic.app/blog/openmw-web-v101/ https://virtastic.app/blog/openmw-web-v101/ Mon, 27 Jul 2026 12:00:00 GMT The first update since launch. Disk-backed saves for bring-your-own-data players, a new resolution tier with crisp menus, real guidance in the launcher, and the end of a nasty CDN caching bug. https://virtastic.app/blog/openmw-morrowind-engine-in-the-browser/ https://virtastic.app/blog/openmw-morrowind-engine-in-the-browser/ Fri, 17 Jul 2026 12:00:00 GMT How we ported the open-source Morrowind engine to WebGL2 (with a WebGPU path in progress) and WebAssembly, the rendering bugs that only exist on the web, and what a game engine proves about modernizing serious software. https://virtastic.app/blog/compiling-qgis-desktop-to-webassembly/ https://virtastic.app/blog/compiling-qgis-desktop-to-webassembly/ Wed, 08 Jul 2026 12:00:00 GMT How we took the full QGIS desktop GIS, Qt Widgets and GDAL and all, into the browser, what got better, and what it teaches about modernizing desktop apps. https://virtastic.app/blog/why-modernize-instead-of-rewrite/ https://virtastic.app/blog/why-modernize-instead-of-rewrite/ Mon, 06 Jul 2026 12:00:00 GMT Rewriting a legacy desktop app costs years and loses features. Recompiling it to WebAssembly keeps the exact app and moves it to the browser, fast.