Here is my list of the best indie games (all of them are sandboxes): 

– Minecraft;

– Stardew Valley; 

– Terraria; 

– Realmcraft; 

– Starbound; 

– Craft the world; 

– Adventaria.

I’m currently playing Realmcraft. It’s a 3D sandbox game inspired by Minecraft. Here you can do whatever you want, no one forces you to get some achievements or finish levels. You freely explore an endless world, collecting resources, building anything you like and fighting night monsters. I like this adventurous game very much and all my friends like it too.