redream

redream

Developer(s)	Anthony Pesch
Latest version	1.5.0 [+]
Active	Yes
Platform(s)	Windows Linux macOS Android Raspberry Pi
Emulates	Sega Dreamcast
Website	http://redream.io
Source code	GitLab (Closed) GitHub (Former source)

redream is a closed-source Sega Dreamcast emulator. It was formerly licensed under GPLv3, but then went closed-source in January 2018. There are two editions of redream: Lite and Premium. First one is free to everyone while second one is payware with added high-definition rendering. The emulator is one of the few if not the only Dreamcast emulator that can run without a BIOS; however, using a BIOS is highly recommended as some games may have bugs as the replacement BIOS is not currently perfect.

Download

	Stable and Dev builds How to manually unlock Premium
	Premium Payware $5. See above.
	Play store Free to download, offers in-app purchases.

System Requirements

PC

Operating system: Windows 7+ 64-bit, macOS 64-bit or Linux 64-bit

Processor: x86-64 compatible with SSE2 support (AVX2 recommended)

Memory: 512 MB RAM

Graphics: OpenGL 3.1 support (Order-independent transparency support is only available in OGL 4.3 or higher)

Mobile

Android: Android 5.0+, OpenGL ES 3.1

Overview

On July 2018, inolen introduced a major change to redream's audio/video synchronization in version 1.2.3 by utilizing a feature called, in his words, "MultiSync". This helps to prevent audible crackling, unexpected latency in audio and skipped or torn frames in video output. The solution does involve some added code complexity and memory bandwidth to handle the extra bits.

"It also has a few more subtle benefits:

• Lower spec machines have more time to do actual emulation work as the main thread is never blocked by vsync.
• If the user has vsync force disabled in their control panel, emulation still runs at the correct speed since it's being driven by the audio sync."

External links

• Official compatibility list
• Discord chat channel for redream
• Twitter news feed for redream