Credits & Attributions
Standing on giants.
Licensing, lineage, and component credits.
Onism Play builds upon decades of collective engineering across POSIX translation, graphics shims, store protocols, and open-source system software. Credit where it is due.
MaPC / MacadeKit Foundation
Built on Steale LLC's open-source architecture for native macOS process supervisor models, store bridges, and bottle prefixes.
POSIX & Graphics Lineage
Powered by upstream Wine Staging, DXVK (Vulkan), DXMT (Metal 3), and MoltenVK translation layers.
Apple Licensing Boundaries
Apple's Game Porting Toolkit (D3DMetal) is strictly unbundled. Users import evaluation binaries under Apple developer terms.
Component Directory & Licenses
Individual upstream libraries and subsystems integrated within Onism Play:
MaPC / MacadeKit by Steale LLC
Apache 2.0Core architectural foundation of Onism Play. Native macOS bottle container management, store bridges, and process supervisory subsystems.
Wine & Wine Staging
LGPL v2.1+The core compatibility layer that translates Windows Win32/NT system calls, file systems, and threads into POSIX and macOS user-space operations.
DXVK
Zlib / LibpngHigh-performance translation layer converting Direct3D 9, 10, and 11 command buffers into Vulkan, executed on Apple Silicon via MoltenVK.
DXMT
LGPL v2.1+Clean-room Direct3D 10 and 11 implementation engineered to translate graphics calls directly to Apple Metal 3 shading and rendering pipelines.
MoltenVK
Apache 2.0Vulkan 1.2 implementation that maps Vulkan graphics and compute shaders directly onto Apple Metal for macOS and iOS.
vkd3d
LGPL v2.1+3D graphics library built on top of Vulkan for DirectX 12 translation within POSIX/Wine environments.
Legendary
GPL v3.0Free and open-source command-line replacement for the Epic Games launcher, enabling native asset streaming and cloud save synchronization.
gogdl
GPL v3.0Open-source command-line client developed by Heroic Games Launcher for downloading GOG games and committing cloud saves directly to GOG servers.
OptiScaler
MITUniversal DLSS/XeSS replacement middleware enabling AMD FidelityFX Super Resolution 3 (FSR 3) temporal upscaling and frame generation.
Whisky & Isaac Marovitz
GPL v3.0Pioneering native Apple Silicon SwiftUI Wine frontend and bottle management paradigms that demonstrated the viability of Mac gaming.
License Notices
Each component preserves its respective upstream copyright and license notices. Full license texts accompany every build in the app’s Licenses directory.
Foundation: MaPC / MacadeKit
Steale LLC Attribution Notice
Onism Play incorporates code from MaPC and MacadeKit by Steale LLC (mapc.games), licensed under the Apache License, Version 2.0. We extend our sincere gratitude to Steale LLC for their foundational work in modern Mac gaming architecture.
In compliance with Section 4 of the Apache License 2.0, the full Apache 2.0 license text and Steale LLC attribution notices are distributed with the source code and packaged binary releases.
Apple Software & Framework Boundaries
Apple Game Porting Toolkit (GPTK) & D3DMetal
Apple’s Game Porting Toolkit and D3DMetal.framework are proprietary Apple software distributed under the Apple Developer Agreement. Onism Play does not package, mirror, redistribute, or license Apple GPTK binaries.
Users who wish to enable DirectX 12 translation through D3DMetal download the evaluation toolkit directly from Apple and provide the DMG to Onism Play. The app extracts the libraries locally onto the user’s device in accordance with Apple’s terms.
Native macOS System Frameworks
Features including spatial audio, low-latency gamepad input, and dynamic shader compilation utilize system APIs shipped with macOS:
PHASE.framework&CoreAudio: 3D head-tracked acoustic spatializationGameController.framework: DualSense haptics, Xbox Wireless, and Switch Pro inputMetal.framework&MetalPerformanceShaders: Hardware graphics computeAPFS: The file system the app’s bottles and data are stored on
Trademarks & Commercial Disclaimers
Steam, the Steam logo, and Valve are trademarks or registered trademarks of Valve Corporation in the U.S. and/or other countries. Epic Games, the Epic Games logo, and Unreal are trademarks or registered trademarks of Epic Games, Inc. GOG and GOG.COM are trademarks of CD PROJEKT S.A.
Apple, Mac, macOS, Apple Silicon, Metal, and AirPods are trademarks of Apple Inc., registered in the U.S. and other countries. PlayStation, DualSense, and DualShock are trademarks or registered trademarks of Sony Interactive Entertainment Inc. Xbox is a registered trademark of Microsoft Corporation.
Onism Play is an independent software project and is not endorsed by, sponsored by, or affiliated with Apple Inc., Valve Corporation, Epic Games, Inc., CD PROJEKT S.A., or any game publisher. All game titles, covers, and promotional key art are the intellectual property of their respective creators and publishers.
Questions regarding licensing or contributions?
For technical inquiries or patches, write to support@onism.ai. For legal and licensing notices, reach out to play@onism.ai.