robovm

> I realise you can make games in any language/engine It's actually a bit more constrained than people realize ... Well, for desktop, you can literally use anything. But for mobile it's a bit harder because of specific platform quirks, i.e. on iOS you can't make a language that relies on a JIT compiler, so for a Java/libGDX game the best option is https://github.com/MobiVM/robovm which compiles the JVM bytecode to LLVM IR and then to native machine code. And then for consoles (switch/xbox/ps5) it's way worse because you're relying on commercial stuff, and the only support you get is from the engine makers themselves (Nintendo/Microsoft/Sony) so there's a lot less open source options. Basically you're stuck with C++ at that point (which Unity actually compiles your C# to under the hood for non-desktop platforms). Not what you asked, but I

Naturally depends on the use case, yet they work good enough to be in business for 20 years. https://www.ptc.com/en/products/developer-tools/perc https://www.aicas.com/wp/products-services/jamaicavm-tools/ https://www.codenameone.com/ Android 5 & 6 (only changed back into JIT/AOT due to long compile times), https://www.infoq.com/news/2014/07/art-runtime/ Unfortunely the best well known, Excelsior JET, is no longer in business, most likely due to GraalVM and OpenJ9 being available as free beer, while PTC, Aicas Codename One are safe in their domains. There is also RoboVM (https://github.com/MobiVM/robovm) as free beer, however it actually started as a commercial product, and the acquisition from Xamarin kind of stagnated it (naturally).

Besides Gluon pointed out in a sibling comment, there are https://www.codenameone.com https://github.com/MobiVM/robovm

Yes, these are the native code compilers for Java, able to target Apple mobile platforms. https://www.codenameone.com/ https://gluonhq.com/products/mobile/ https://github.com/MobiVM/robovm

RoboVM, https://github.com/MobiVM/robovm Excelsior JET has a free license for open source projects, https://www.excelsiorjet.com/ But the majority of good ones are commercial. All JDK vendors selling JVMs for embedded devices or real-time deployments, do support AOT compilation.

OpenJDK 9 if on Linux x64, but it is still not yet released. ExcelsiorJET has a free license for non-commercial uses. https://www.excelsiorjet.com/ https://www.excelsiorjet.com/#free RoboVM's fork is another possibility https://github.com/MobiVM/robovm