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FWsim - Fireworks Display SimulatorNewsFWsim 3.3 Now Available
In-game event

FWsim 3.3 Now Available

FWsim - Fireworks Display Simulator · published 6 May 2021, 12:46 UTC

All newsPlayers around this dateRead on Steam

Thanks everyone for your feature ideas! The latest update, FWsim 3.3, is now ready.

  • New firework selection window with better filters and animated preview. Helping you to understand the different types of firework effects, even if you have never used FWsim before.
  • Effect Editor: Pause, scroll forwards and backwards in time, and see your updates instantly. That way, you can pause on an important moment in the effect, make your changes, and easily understand the changes you make.
  • Even more performance improvements
  • Right-click in effect selection window to delete effects you no longer need
  • Some very old effects were removed from the library, and replaced with new designs. (The old effects are still included as a ZIP file in the FWsim program directory, located in your Steam folder - in case you want to get them back for any reason)
  • Effect Editor: Special tail components now available. These tail components can be inserted instead of a normal tail, and they represent real types of tails. This is a good way to immediately make your effects more realistic! There are also some components available for realistic ascent effects on shells.
  • Effect Editor: Stars can be configured to not change color when using the "change color" option in the show editor.
  • Effect Editor: Ascent Stars can be configured to change color when using the "change color" option in the show editor. (this is off by default)
  • New option to automatically go back to starting point after playing in the show editor.
  • Users without a middle mouse button can now use the CTRL key plus left mouse button to move the free camera.
  • Improved layout on 4K monitors

What's your wishlist for the next updates? Let us know - we look forwards to hearing from you!

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Major update8 Sep 2026v4.4.2 - Massive Effect Editor Upgrade, plus improved performanceFWsim 4.4.2 is rolling out on Steam now. This one is all about the effect editor, plus a speed boost that everyone gets without touching a single setting. Faster out of the box · Accelerated Rendering is now on by default. Same visual quality, noticeably faster, and easier on laptop batteries. It works on NVidia and AMD dedicated graphics cards, and you can switch it off under Preferences > Gra…Major update15 Jun 2026FWsim 4.4 - Motorized Stars, Better Performance, and new effects featuresCheck out update 4.4! Here's what's new: ⭐ Graphics improvements · More realistic appearance of stars · Accelerated Rendering (Settings → Graphics) — runs much faster and uses less battery at the same visual quality. Available on NVidia and AMD dedicated graphics cards. · Even without accelerated rendering, this new update should be faster on all systems. · More realistic water reflections ✨ Ef…Game update16 Sep 2025Massive Performance ImprovementIn this update: · Better performance when editing your show, especially on large shows with many cues · New option: “Reverse Order on Timeline” (CTRL + SHIFT + R). Use this when you make a stepper out of single cues and you want to reverse the order. · The timeline now looks much better when you zoom out very far. Your show will look cleaner and it’s easier to make edits even at extreme zoom le…