-NOTE: This mod was created based on Demon's Souls BLUS30443 (English release) and the text params will be incompatible with any other version of Demon's Souls. I.E. placeholder text with show for items/armor/weapons for non-English releases.)

INSTALLATION-
Simply place the mod folder contents (USRDIR folder and image files) into your Demon's Souls PS3_GAME folder and overwrite the contents when prompted.  File path should be (wherever your Demon's Souls game is saved) > Demon's Souls > PS3_GAME <--Place files here.
It is also best to delete your RPCS3 PPU cache.  File path should be (wherever your RPCS3 folder is saved) > RPCS3 > cache > BLUS30443(different for other territories) <--Delete the ppu folders inside here.

-Important- It is best to make a copy of your original Demon's Souls game files and install the mod to the new copy. (This is to avoid corrupting game saves and so you can run either Vanilla or DeS Expanded separately.)
To improve load times and other issues you can delete the Demon's Souls PPU cache.
Open your RPCS3 root folder, open the cache folder, open your version of Demon's Souls (BLUS30443 in this case), and delete the contents.  Run Demon's Souls and it should automatically recompile new PPU files.

This map mod collections adds in new areas to worlds 1-1 [new PVP arena+ items - explorable ramparts], 1-2 [explorable lower city - repeatable Penetrator fight+special items], 1-3(items), 1-4 Black phantoms wear appropriate armor (Penetrator and Tower Knight) and  items, 2-1 [explorable lower Stonefang/Inner Stonefang- vangaurd encounter], 2-2 new items and shortcut, 3-1 [new explorable area Prison of hope], 3-2 [restored tower - repeatable Maneater fight] and  items, 4-1 [new explorable area - PVP Arena], 4-2 [repeatable Old Hero fight], 5-1 [Bridge skip - Alternate route], 5-2 [New area in the swamp+ PVP Arena], Nexus - New archstone that allows travel back to all 3 tutorial levels. (being killed by Dragon God a 2nd time may break the game)

Adds in new weapons
-Archstone Sword (Textures not working. Will be fixed in a future release.) Found in 3-2
-Masamune (bastard sword recolor/altered moveset) - (based on the Masamune from Chrono Trigger) Found in 1-2
-Faded Moonlight Sword (Large Sword of Moonlight +1 to +4)  Found in 1-1 and 5-2 
-Holy Moonlight Sword (Large Sword of Moonlight +5) altered textures and icon
-Torch (cut torch) Found in tutorial
-Hatchet (cut hand axe) Found in tutorial and 4-1
-Tower lance (cut spear) Found in 1-2 (with Tower Shield)
-Assassin's Dagger (cut dagger2) Found in 1-3
-Spade (cut dagger1) Found in 1-1
-Hoplite shield (based on the PS5 Remake) Found in 1-1 (after Phalanx is defeated)
-Heavenly Wind (HP draining katana variant) Found in 4-2
-Gae Bolg (Istarelle retexture with the Mirdan Hammer moveset) Found in 3-2
-Zangetsu (Meat Cleaver retexture) Found in 4-1
-Black Scar (Rune Sword retexture) Found in 4-2
-Flame Plate Shield (Knight shield retexture) Found in 4-2
-Moonlight Shield (Custom Grass Crest Shield variant) Found in 5-2

Weapon retextures
-Penetrator Sword +5 (blood-red blade)
-Broadsword (deep blue similar to DS1)

Adds in new Armors (Standalone armor sets. Not replacers)
-Flame Plate Set (Found in 2-2)
-Drake Knight Set (Found in 3-2)
-Forgotten Hero set (Found in 4-2)
-Boletarian Knight set (Found in 1-1)
-Black Knight set (Found in 1-4)
-Penetrator Armor set (based on the PS5 Remake) (Found in 1-2 Lower Boletaria)
-Tower Knight set (original work from Boczekek) (Found in 1-2 Lower Boletaria)

Other Changes
-GUARUNTEED PURE BLADESTONE IN 4-2!!!  (Only one per game cycle)
-Changes the Black phantoms in 1-4 to have the appropriate armors (Penetrator and Tower Knight Both use the same armor models as the player would)
-New ballista event in 1-2
-New black phantom enemies
-Increased number of Shards of Archstone and Ephemeral Eyes across all worlds
-Increased number of upgrade items across all worlds

This mod is for anyone looking for a new experience in Demon's Souls and those who enjoy exploration. 
As one of my favorite games, I hope you all enjoy this mod collection and find it to be a good reason to play through the game again!

Notes: This mod is not compatible with most other mods.  Texture replacers/Lighting/visual mods should work fine but, anything that overwrites scripts and .msb files will break the mod.   : (  Sorry.  There are some changes that will affect the game that cannot be fixed as of now.  The primary examples are:

-Phalanx MUST be defeated to access the lower city. 
-Adjudicator MUST be defeated to access the new area in 4-2.  
-The new armors/weapons may take a bit to load in. (Has been optimized. Make sure to delete your DeS ppu folders!)
-Load times might be slightly longer due to more resources being loaded.
-Some enemies may or may not act entirely as expected
-leaving or reloading the game in new areas may cause some issues. [Hopefully this has been fixed]
-This mod will be constantly updated along with the individual releases.

For any bugs or issues, PLEASE notify me!

Credits

fromsoftserve - Data/Unused Content/Cut Content/Out of Bounds Content

illusory wall - Data/Unused Content/Cut Content/Out of Bounds Content

Vaatividya - Data/Lore References

AesirAesthetics - Demon's Souls Info/Lore/Unused Content/Cut Content

Wulf2K9 - Data/Modding tutorials/Help

Thens - Data/Unused Content/Cut Content/

Dropoff - Mapfile importing/merging Concept

Endless thanks to ottre for creating the .sdat files for the new events.

Crest -Explore Faraway Boletaria City

katalash - DSMapStudio/Tools

The Eclipse - Playtesting and feedback

Shout out to Boczekek, Torixide, Stripa18, Hesiolite, and JackInTheBack for Ideas and support.  Thanks guys!