Get what you want quickly as sometimes these troves tend to last days to months before they get flagged and removed. All are functional at the time I wrote this.

**D&D 5E Mega Trove :**

https://mega.nz/#F!BUdBDABK!K8WbWPKh6Qi1vZSm4OI2PQ

**Community DMs Guild trove:**

https://mega.nz/#F!UA1BhCBS!Oul1nsYh15qJvCWOD2Wo9w

**Home Brew Resources:**

https://mega.nz/#F!1hJRRIYS!x-JEItldMJOy_7_Z3F7LoQ!J4ZD3LLK

**Pathfinder:**

https://mega.nz/#F!vIJn1Y6Q!MbyyqQK6u0tWWSAimsIjiw!XUIzBDpA

https://mega.nz/#F!kBAn3TBR!49_iwDup24kSiIJmwTPwjA


**D&D 3.5/4/5 Trove:**

https://mega.nz/#F!UsRUlLAR!-5YN6nV_QeOO97Gu6CE-sg

**D&D v.3.5 Accessory Update Booklet:** http://archive.wizards.com/default.asp?x=dnd/dnd/20030718a

**Basic/1e/2e Trove(many classic modules here for inspiration):**

https://mega.nz/#F!dgQ2GQYa!KQQf2-1aRySfvLz95TzIkA

**Game Master/Dungeon Master resources to improve running and writing adventures:**

https://www.mediafire.com/folder/b5nu6n9og4791/Help_Trove

http://mega.nz/#F!9pZ0TDaY!Zvfd9CWfkDd73N84Jk7T1w

**Role-Playing Mastery by Gary Gygax:**

https://cdn.preterhuman.net/texts/gaming_and_diversion/RPG/TSR%20-%20DM%20Supplement%20-%20Role-Playing%20Mastery%20by%20Gary%20Gygax.pdf

**OSR Trove**

https://mega.nz/#F!7xdGUDaR!DAHjel-07Eq__KdJAHPgXw!awFTnToa


Look at these in the Mediafire Help_Trove as well:

* Master of the Game by Gary Gygax

* Focal Point: The Complete Game Master's Guide to Running Extraordinary Sessions

* Laws of good game mastering

* Lazy Dungeon Master

* Never Unprepared guide to session prep

* Odyssey guide to caimpaign management

* Sly Flourish DM Tips

* Unframed: Guide to Improvisation

* Game Mastering by Brian Jamison

There are also some good plot hook and tool kit books in there.

Buy the books when you can if they are still being published.