DOOM II: implement new game (#2255)

worlds/doom_ii/docs/en_DOOM II.md

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+# DOOM II
+
+## Where is the settings page?
+
+The [player settings page](../player-settings) contains the options needed to configure your game session.
+
+## What does randomization do to this game?
+
+Guns, keycards, and level unlocks have been randomized. Typically, you will end up playing different levels out of order to find your keycards and level unlocks and eventually complete your game.
+
+Maps can be selected on a level select screen. You can exit a level at any time by visiting the hub station at the beginning of each level. The state of each level is saved and restored upon re-entering the level.
+
+## What is the goal?
+
+The goal is to complete every level.
+
+## What is a "check" in DOOM II?
+
+Guns, keycards, and powerups have been replaced with Archipelago checks. The switch at the end of each level is also a check.
+
+## What "items" can you unlock in DOOM II?
+
+Keycards and level unlocks are your main progression items. Gun unlocks and some upgrades are your useful items. Temporary powerups, ammo, healing, and armor are filler items.

worlds/doom_ii/docs/setup_en.md

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+# DOOM II Randomizer Setup
+
+## Required Software
+
+- [DOOM II (e.g. Steam version)](https://store.steampowered.com/app/2300/DOOM_II/)
+- [Archipelago Crispy DOOM](https://github.com/Daivuk/apdoom/releases)
+
+## Optional Software
+
+- [ArchipelagoTextClient](https://github.com/ArchipelagoMW/Archipelago/releases)
+
+## Installing AP Doom
+1. Download [APDOOM.zip](https://github.com/Daivuk/apdoom/releases) and extract it.
+2. Copy DOOM2.WAD from your steam install into the extracted folder.
+   You can find the folder in steam by finding the game in your library,
+   right clicking it and choosing *Manage→Browse Local Files*.
+
+## Joining a MultiWorld Game
+
+1. Launch apdoom-launcher.exe
+2. Select `DOOM II` from the drop-down
+3. Enter the Archipelago server address, slot name, and password (if you have one)
+4. Press "Launch DOOM"
+5. Enjoy!
+
+To continue a game, follow the same connection steps.
+Connecting with a different seed won't erase your progress in other seeds.
+
+## Archipelago Text Client
+
+We recommend having Archipelago's Text Client open on the side to keep track of what items you receive and send.
+APDOOM has in-game messages,
+but they disappear quickly and there's no reasonable way to check your message history in-game.
+
+### Hinting
+
+To hint from in-game, use the chat (Default key: 'T'). Hinting from DOOM II can be difficult because names are rather long and contain special characters. For example:
+```
+!hint Underhalls (MAP02) - Red keycard
+```
+The game has a hint helper implemented, where you can simply type this:
+```
+!hint map02 red
+```
+For this to work, include the map short name (`MAP01`), followed by one of the keywords: `map`, `blue`, `yellow`, `red`.
+
+## Auto-Tracking
+
+APDOOM has a functional map tracker integrated into the level select screen.
+It tells you which levels you have unlocked, which keys you have for each level, which levels have been completed,
+and how many of the checks you have completed in each level.