Unity

Ship on the default stack below. Each row names the one tool to reach for, so the choice is already made — spend the thinking on the feature instead.

Baseline: 6.7 LTS, written CoreCLR-ready. 6.7 LTS is the last Mono release; 6.8 removes Mono and moves the Editor and desktop player to CoreCLR on .NET 10 / C# 14. Unity 7 (Q1 2027) continues that line rather than breaking it — a CoreCLR-ready project reaches it with little extra work, which is what the discipline in runtime.md buys.

The default stack