I followed the other suggestions for using htop to kill 3 of the nw.exe instances, and that worked in as much as I was able to then see the interface of the game. Sadly, all the game interface said was: Uncaught node.js Error

TypeError: Cannot read property 'shaderProgram' of null at GLBatchJob.doSetProgram (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:2283:18) at GLWrap_.endBatch (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:2453:7) at GLWrap_.setSize (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:2055:8) at Runtime.initRendererAndLoader (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:3415:16) at Runtime.loadProject (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:4182:8) at XMLHttpRequest.xhr.onload (file:///C:/users/steamuser/Temp/nw49_21783/c2runtime.js:3336:11)