LiteIDE

LiteIDE or LiteIDE X (https://github.com/visualfc/liteide) is a very interesting open source project. It is one of the earliest Go IDEs and it predates both GoLand and the Go extension for VS Code. I used it in the early days and was surprised by its quality. I eventually dropped it due to difficulties with interactive debugging via the GNU Project Debugger (GDB). It is actively developed, has a lot of contributors, and supports all the latest and greatest Go features, including Go 1.1 and the Go modules. You can now debug using Delve, which is the best of class Go debugger.