https://www.nandgame.com/ 免费
https://store.steampowered.com/app/1444480/Turing_Complete/
收费，70元。据说可以导出 Verilog ！
logisim及其衍生版本
都需要安装java环境。
http://www.cburch.com/logisim/ 是原版，
下载页面：https://sourceforge.net/projects/circuit/
Last Update: 2013-04-29 版本停留在2.7.1
2.7.1的中文版不是官方的：http://www.kkx.net/soft/3799.html http://down.kkxxiazai.com/small/Logisimhanhuaban.zip
logisim-evolution自带中文，支持fpga
https://github.com/logisim-evolution/logisim-evolution
下载页面：https://github.com/logisim-evolution/logisim-evolution/releases
win10安装包：https://github.com/logisim-evolution/logisim-evolution/releases/download/v3.8.0/logisim-evolution-3.8.0-x86.msi
