RoR2: 1.20 content update (#1396)

## Adding in Explore Mode:

Features include:
* Added in `environments` to be items.
* `Location checks` are now `environment based` instead of being able to get them from anywhere.
* Added in support for the `DLC Survivors of the void` which include `Void Items` and `3 new maps` that come with it. (option added to use DLC)

---------

Co-authored-by: Dogpetkid <dogpetkid@gmail.com>

worlds/ror2/docs/en_Risk of Rain 2.md

@@ -12,19 +12,34 @@ functionality in which certain chests (made clear via a location check progress
 multiworld. The items that _would have been_ in those chests will be returned to the Risk of Rain player via grants by
 other players in other worlds.
 
+There are two modes in risk of rain. Classic Mode and Explore Mode
+
+Classic Mode:
+
+  - Classic mode implements pure multiworld
+functionality in which certain chests (made clear via a location check progress bar) will send an item out to the
+multiworld. The items that _would have been_ in those chests will be returned to the Risk of Rain player via grants by
+other players in other worlds.
+
+Explore Mode:
+
+  - Just like in Classic mode chests will send out an item to the multiworld. The difference is that each environment
+  will have a set amount that can be sent out and shrines along with other things that will need to be checked.
+  Also, each environment is an item and, you'll need it to be able to access it.
+
 ## What is the goal of Risk of Rain 2 in Archipelago?
 
-Just like in the original game, any way to "beat the game or obliterate" counts as a win. By default, if you die while
-on a final boss stage, that also counts as a win. (You can turn this off in your player settings.) **You do not need to
-complete all the location checks** to win; any item you don't collect is automatically sent out to the multiworld when
-you meet your goal.
+Just like in the original game, any way to "beat the game or obliterate" counts as a win. There is a setting that
+if you die while on a final boss stage, that also counts as a win.(You can turn this on in your player settings.)
+**You do not need to complete all the location checks** to win; any item you don't collect may be released if the 
+server options allow.
 
 If you die before you accomplish your goal, you can start a new run. You will start the run with any items that you
 received from other players. Any items that you picked up the "normal" way will be lost.
 
 Note, you can play Simulacrum mode as part of an Archipelago, but you can't achieve any of the victory conditions in
-Simulacrum. So you could, for example, collect most of your items through a Simulacrum run, then finish a normal mode
-run while keeping the items you received via the multiworld.
+Simulacrum. So you could, for example, collect most of your items through a Simulacrum run(only works in classic mode),
+then finish a normal mode run while keeping the items you received via the multiworld.
 
 ## Can you play multiplayer?
 
@@ -38,6 +53,8 @@ settings apply, so each Risk of Rain 2 player slot in the multiworld needs to be
 for example, have two players trade off hosting and making progress on each other's player slot, but a single co-op
 instance can't make progress towards multiple player slots in the multiworld.
 
+Explore mode is untested in multiplayer and will likely not work until a later release.
+
 ## What Risk of Rain items can appear in other players' worlds?
 
 The Risk of Rain items are:
@@ -49,6 +66,7 @@ The Risk of Rain items are:
 * `Lunar Item`     (Blue items)
 * `Equipment`      (Orange items)
 * `Dio's Best Friend` (Used if you set the YAML setting `total_revives_available` above `0`)
+* `Void Item`      (Purple items) (needs dlc_sotv: enabled)
 
 Each item grants you a random in-game item from the category it belongs to.
 
@@ -57,6 +75,29 @@ in-game item of that tier will appear in the Risk of Rain player's inventory. If
 the player already has an equipment item equipped then the _item that was equipped_ will be dropped on the ground and _
 the new equipment_ will take it's place. (If you want the old one back, pick it up.)
 
+Explore Mode items are:
+
+* `Titanic Plains (1)`, `Titanic Plains (2)`, `Distant Roost (1)`, `Distant Roost (2)`
+* `Abandoned Aqueduct`, `Wetland Aspect`
+* `Rallypoint Delta`, `Scorched Acres`
+* `Abyssal Depths`, `Siren's Call`, `Sundered Grove`
+* `Sky Meadow`
+* `Commencement`
+* `All the Hidden Realms`
+
+Dlc_Sotv items
+* `Siphoned Forest`
+* `Aphelian Sanctuary`
+* `Sulfur Pools`
+* `Void Locus`
+
+When a explore item is granted it will unlock that environment and will now be accessible to progress to victory! The 
+game will still pick randomly which environment is next but it will first check to see if they are available. If you have
+them unlocked it will weight the game to have a ***higher chance*** to go to one you have checks versus one you have 
+already completed. You will still not be able to goto a stage 3 environment from a stage 1 environment.
+
+
+
 ### How many items are there?
 
 Since a Risk of Rain 2 run can go on indefinitely, you have to configure how many collectible items (also known as
@@ -65,6 +106,10 @@ to 250** items. The number of items will be randomized between all players, so y
 item pickup step based on how many items the other players in the multiworld have. (Around 100 seems to be a good
 ballpark if you want to have a similar number of items to most other games.)
 
+In explore mode the amount of checks base on how many **chests, shrines, scavengers, radio scanners and, newt altars**
+are in the pool. With just the base game the numbers are **52 to 516** and with the dlc its **60 to 660** with 
+everything on default being **216**
+
 After you have completed the specified number of checks, you won't send anything else to the multiworld. You can
 receive up to the specified number of randomized items from the multiworld as the players find them. In either case,
 you can continue to collect items as normal in Risk of Rain 2 if you've already found all your location checks.