JOJoachimS·Mar 16, 2019
Icarus is still around. Stephen Williams has been steadfastly working on it over the years.
http://iverilog.icarus.com/
https://github.com/steveicarus/iverilog
I use it almost daily. It is a really nice Verilog simulator. I also use Verilator, ModelSim and other sims too . All of them find different issues with the code. The linter in Verilator is very nice to use to get rapid feedback.
In Project Zipline – High-throughput low-latency compression