GameMaker Studio 2 (2.3)

TweenGMS Pro

Stephen Loney

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With TweenGMS 2 nearing completion, TweenGMS Pro is now free for the marketplace! :)

Come join the TweenGMS Discord Server!

TweenGMS Pro is a feature-rich tweening engine which is both flexible and easy-to-use.

With years of development, it offers essential and advanced features powered by an optimised codebase.

Boost the look of your games by tweening movement, rotation, scale, views, paths, and much more!

Not familiar with tweening? See this video.

You can also check out:

Interactive Demo

Video Tutorials

Online Script Reference


  • Fire-and-forget tweening
  • Step and seconds(delta) timing
  • Time scale control (global and per-tween)
  • Play modes (once,bounce,patrol,loop,repeat)
  • State control (pause,resume,stop,finish,reverse)
  • Automatic memory and persistence management
  • Advanced callback system
  • Custom variable easing
  • Path resource tweening
  • Data structure support
  • Delayed tweens
  • Control groups
  • Heavily optimised
  • Supports all platforms
  • And more...

[Code Example]

// Tween instance to mouse x/y position
t = TweenFire(id, EaseInOutQuad, TWEEN_MODE_ONCE, true, 0.0, 3.0, "x", x, mouse_x, "y", y, mouse_y);

// Event callback
TweenAddCallback(t, TWEEN_EV_FINISH, id, ShowMessage, "Done!");

// State control

// Easy Tweens
TweenEasyMove(x, y, mouse_x, mouse_y, 0, 30, EaseOutQuad);
TweenEasyScale(1, 2, 0, 60, EaseOutElastic);

Follow @TweenGMS on Twitter for updates!

Proverbs 3:5-6

End User Licence Agreement (EULA).

Age Rating: 4+


Version 1.0.3. Published September 1, 2018

[Version 1.0.3] - Added TweenScript() and TweenMoreScript() for scheduling script calls - Updated TGMS_ExecuteEvent() to support more callback arguments - Added document to clarify which scripts can be safely deleted

[Version 1.0.2] - Added TweenMore() script for chaining tweens - Added TweenDefine() for defining or redefining tweens - Documentation tweaks

[Version 1.0.1] - Fixed crash related to TweensTarget() selection script - Added missing platform targets

GMS2 - Version 1.0.7. Published October 16, 2020

-Fixed issue where TweenPlay failed to play more than once when using TWEEN_MODE_BOUNCE

GMS2.3 - Version 1.11.0. Published January 1, 2022

  • Added TPStruct() and TPInst() for easing specific struct or instance values
  • Tween callback now support struct targets
  • Callback methods now use specified callback targets
  • The [undefined] keyword is now a valid callback target for maintaining method's self
  • Added "z" as a default optimised property setter
  • Fixed various state checks return undefined instead of false
  • Changed some internal naming to prevent naming conflicts
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