You really need this! The game crashes on 2GB RAM models (thanks Shootemup252 for testing). Lastly if you find this useful, friend me in DotA! Here's my Steam profile.
Check out my follow-up article with screenshots and FPS details. Update: I got a good response on reddit with lots of Q&A. This guide sets you up to run any game you like from a Chromebook without running out of precious disk space. Chromebooks are cheap and capable machines that need some coaxing to unlock their potential. DotA 2 is a challenging, free-to-play team game played by literally everyone*.