Uploaded September 2025 | Updated September 2026, 2 weeks ago

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In this video, I showcase the Surge Engine demo from SAGE 2025 — a framework built in Unity that implements Modern Sonic gameplay using a boost formula. The demo features three stages: a Developer Test Stage and Windmill Isle Act 1 & Act 4. It aims to recreate many of the signature features of the Hedgehog Engine.

Surge Engine (SAGE '25 Demo) by sokilo: sonicfangameshq.com/forums/showcase/surge-engine-sage-25-demo.2766
Intro/Outro by Sonic Terminal: youtube.com/c/SonicTerminal
My Discord Server:
discord.gg/wtUccdZHpt

Timestamps:
00:00 Intro
00:06 Title
00:16 Developer Place
05:28 Windmill Isle Act 1
06:40 Windmill Isle Act 4
08:22 Outro

Thanks for watching! ✌️