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===Comparisons=== ;Spine: First public PS4 A high level emulator that was the first to play boot games (the demo can only run two at the moment).<ref name="spinegames">https://www.youtube.com/watch?v=2EFrUQ2J3D4</ref>. In a stark contrast from other closed source emulators, Spine is a High-Level emulator, it's Linux-only and closed-source for nowexclusive;<ref name="spinefoss">[https://www.reddit.com/r/emulation/comments/byohyx/spinedemo_20190609/eqorujedevofspine] on Reddit. "No source code at the moment though I plan to make it open source at some point."</ref>the creator has opted not to release the source code out of caution.<ref>[https://www.reddit. com/r/emulation/comments/bwz7we/spine_ps4_emulator_another_fake_more_info_in/eqakwsz/ devofspine] on Reddit. "I wouldn't mind open sourcing it at some point in time but there are several things that stop me from doing this in the near future: a) there are some parts in the code that are a mess and I wouldn't feel comfortable releasing them for public consumption, b) I enjoy the freedom to develop it in the way I want to, c) I would be a bit afraid of losing control, open source brings with it a risk of forks for example and I wouldn't like to see my work used to do for example a Windows exclusive variant, and d) PS4 is still a current gen console." (Edited)</ref> It uses a [[Wine]]-like approach, and its authenticity was verified by lead Orbital developer AlexAltea. It's a dynamic linker for PS4 executables. Or from other perspective it's HLE without CPU emulation<ref name="spinewine">[https://www.reddit.com/r/emulation/comments/byohyxbz4ikp/orbital_a_playstation_4_emulator_that_is/spinedemo_20190609eqq6lxt/eqq310bAlexAltea] on Reddit. "I've analyzed the Spine demo in IDA Pro (reverse engineering tool), and everything checks out. It's obviously a very early release, lots of unimplemented parts, but it's real. More importantly, we have tested it locally and it works."</ref>. ;[[Orbital]]: Low-Level and An open-source low-level emulator based on [[QEMU]], Orbital uses existing hypervisors like Intel HAXM to speed up performance. A surprising amount of progress has been made for an emulator of its kind, having to emulate the kernel used by the PS4 emulator; it's [https://www.youtube. Cancom/watch?v=IBBHisNM74o currently stuck at the console's Safe Mode] and, thus, can't boot any games yet.