RedPill, entwickelt von Carlos Peris, ist ein in Amiblitz 3.99 geschriebenes Game Construction Kit, das die Entwicklung von Spielen aus diversen Genres ermöglichen soll (z.B. Agonman). RedPill ist kompatibel mit AGA und ECS, der "Player" zum Abspielen der fertigen Kreationen benötigt insgesamt 1,5 MB RAM. Jens 'Farbfinsternis' Henschel hat auf seiner Webseite eine deutschsprachige Anleitung verfasst.
Die neue Version 0.9.37 bietet neben Optimierungen und einer Menge Fehlerbehebungen auch verbesserte Copper-Effekte für ECS-Amigas. Hier ist ein Vorher-Nachher-Vergleich:

• Big optimization in Trigonometry code, leading to a big boost in performance.
• Instantiate function has been optimized with some ASM magic.
• Basic_platformer example has been revamped with graphics from Surt.
• When building the game, now all game data is inside the data folder, no need for the res folder anymore.
• ECS copper gradients have been improved, they are more smooth now like in Turrican 2.
• When using Play now the current level is saved, just like you play start.
• Added new trigger Run From Editor, to check if the game is running from editor or standalone.
• Distance to Target condition trigger was very unprecise, now it has been improved a lot.
• Mouse input code now is only run when being used.
• Small improvements when using NTSC screens.
• In HUD screen when an element was partly outside the HUD was not drawn, now it is, but drawing will be slower.
• Removed Topaz2 font.
• Topaz font is now the default one. When using Topaz font, there is no need to have diskfont library available.
• Optimization in angular logic.
• Fix for a crash that occured when changing the level. -Fix in loading levels code, that sometimes could led to the level being erased. -Fix for Camera Inc not working under certain circumstances. -Fix when creating the screen that could leave glitches in the border of the screen. -Fix when scrolling down, sometimes left some line glitches. -Fix in dialogs somethings messing the screen. -Fix in copper backgrounds when using an image as the source for the palette. -Some unused code has been removed.