Using Nginx to serve a static files in a subdirectory

Solved it.Needed to change this block of code here:

location /RGBGame {root /var/www/khairulslt.me;index colorGame.html;try_files $uri $uri/ /var/www/RGBGame/colorGame.html?q=$uri&$args;autoindex off;}

Will leave my final configuration here in case it helps anyone:

server {  server_name khairulslt.me www.khairulslt.me;  autoindex off;  location / {    root /var/www/khairulslt.me;    index circles.html;  }listen 443 ssl; # managed by Certbotssl_certificate /etc/letsencrypt/live/khairulslt.me/fullchain.pem; # managed by Certbotssl_certificate_key /etc/letsencrypt/live/khairulslt.me/privkey.pem; # managed by Certbotinclude /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbotssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbotlocation /RGBGame {    root /var/www/khairulslt.me/RGBGame;    index colorGame.html;    try_files $uri $uri/ /var/www/RGBGame/colorGame.html?q=$uri&$args;    autoindex off;  }location /robots.txt { return 200 "User-agent: *\nDisallow: /\n";   }} server {if ($host = www.khairulslt.me) {    return 301 https://$host$request_uri;  } # managed by Certbotif ($host = khairulslt.me) {    return 301 https://$host$request_uri;  } # managed by Certbotlisten 80;server_name khairulslt.me www.khairulslt.me;return 404; # managed by Certbot}

What this config does:

1) Serve static files, Web App #1, aka bunch of html/css/js files) at the URL khairulslt.me

2) Serve second set of static files, Web App #2, aka bunch of html/css/js files) at the URL khairulslt.me/RGBGame

You don't need to provide a path to the file, but to the directory in your alias directive.

So simply use:

location /RGBGame/ {     alias /var/www/RGBGame/;     index colorGame.html; }

You alias seems to be pointing to a file colorGame.html give a try to this:

server {  listen 80;  server_name khairulslt.me www.khairulslt.me;  location /RGBGame/ {     alias /var/www/RGBGame/;  }}

When using alias a request to ://khairulslt.me/RGBGame/file.foo will serve files from:

/var/www/RGBGame/file.foo

You could use root for example (append the location to the path):

  location /RGBGame/ {     root /var/www/khairulslt.me/;  }

In this case, requests to ://khairulslt.me/RGBGame/file.foo will serve files from:

/var/www/khairulslt.me/RGBGame/file.foo