Godot
Introduction
Best intro video:
https://www.youtube.com/watch?v=KjX5llYZ5eQ
Getting Started with Godot
https://www.youtube.com/watch?v=42HKCFf5Lf4&list=PLhqJJNjsQ7KEcm-iYJ2a8UCRN62bTneKa&index=2
Godot Platforms
Android
http://docs.godotengine.org/en/3.0/getting_started/workflow/export/exporting_for_android.html
iOS
http://docs.godotengine.org/en/3.0/getting_started/workflow/export/exporting_for_ios.html
https://www.youtube.com/watch?v=u6IMXYGVPoE
Showcase
Godot Courses
Paid Godot Courses
https://www.udemy.com/godot-beginner-to-advanced-complete-course/
https://gdquest.mavenseed.com/courses/learn-to-code-from-zero-with-godot
https://gdquest.mavenseed.com/courses/godot-node-essentials
References
Docs:
http://docs.godotengine.org/en/3.0/
Step-by-Step guide:
http://docs.godotengine.org/en/3.0/getting_started/step_by_step/
Videos
Godot 3 Tutorial
https://www.youtube.com/watch?v=iDEcP8Mc-7s&list=PLS9MbmO_ssyDk79j9ewONxV88fD5e_o5d
https://www.youtube.com/watch?v=uPoLKQG0gmw
https://www.youtube.com/watch?v=PTnpTfDRPBo
https://www.youtube.com/watch?v=6sJFMyI3eZ0
https://www.youtube.com/watch?v=5ZuQIbMEjLw
https://www.youtube.com/watch?v=LBK5GgMB988
https://www.youtube.com/watch?v=-D-IcbsdT04
https://www.youtube.com/watch?v=6sJFMyI3eZ0
https://www.youtube.com/watch?v=d9t3CdMks7M
https://www.youtube.com/watch?v=PukazzwUQKU
https://www.youtube.com/watch?v=wETY5_9kFtA
https://www.youtube.com/watch?v=7oARHEepjJ0
https://www.youtube.com/watch?v=p0MXsx79KQ8
https://www.youtube.com/watch?v=y2RVAl3H-EY
https://www.youtube.com/watch?v=gHA4M2cqWb0
https://www.youtube.com/channel/UCKIDvfZD1ZhY4_hhbotf7wA
https://www.youtube.com/watch?v=XptlVErsL-o
https://www.youtube.com/watch?v=rY7wzK59-Jw
https://www.youtube.com/watch?v=vCUKwT_jb9Q
https://www.youtube.com/watch?v=t14gH-jCQ1k
https://www.youtube.com/watch?v=awBfTnmgn7k
https://www.youtube.com/channel/UCNaPQ5uLX5iIEHUCLmfAgKg
https://www.youtube.com/watch?v=O0KZVBPaxSk
Unity Developer Tries Godot Engine
https://www.youtube.com/watch?v=bg1r6sLvtAA