diff --git a/cdn/README.md b/cdn/README.md
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+# cdn
+
+Content Delivery "Network" for images and the client's static JSON.
+
+This doesn't do much on its own, but it does support authenticated image uploads for user and clan avatars.
+The authentication uses the `token_secret.key` to prove this server and client (the other server) are part of the same rc-servers instance.
diff --git a/polariton_auth/README.md b/polariton_auth/README.md
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+# polariton_auth
+
+Authentication library used for all polariton connection handshakes.
+This implements the key derivation for the key exchange in all PUN services (usually part of their respective `main.rs` files).
diff --git a/rc_auth/README.md b/rc_auth/README.md
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+# rc_auth
+
+Client authentication HTTP service.
+This also implements intercom services for relaying messages between other services.
diff --git a/rc_chat/README.md b/rc_chat/README.md
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+# rc_chat
+
+Chat PUN service bouncer.
+This immediately sends all new connections to the configured `rc_chat_room` service.
diff --git a/rc_chat_room/README.md b/rc_chat_room/README.md
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+++ b/rc_chat_room/README.md
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+# rc_chat_room
+
+Chat PUN service.
+This handles sending messages between users in global channels, clan channels, battle (team and all) channels, and private (1 on 1) channels.
diff --git a/rc_core/README.md b/rc_core/README.md
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+++ b/rc_core/README.md
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+# rc_core
+
+Common functionality shared between all services.
diff --git a/rc_database/README.md b/rc_database/README.md
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+++ b/rc_database/README.md
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+# rc_database
+
+Database functionality shared between all services.
diff --git a/rc_factory/README.md b/rc_factory/README.md
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+++ b/rc_factory/README.md
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+# rc_factory
+
+Common Community Robot Factory (CRF) functionality shared between all services.
diff --git a/rc_factory_web/README.md b/rc_factory_web/README.md
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+++ b/rc_factory_web/README.md
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+# rc_factory_web
+
+Factory website service inspired by `factory.robocraftgame.com` (which is no longer online).
diff --git a/rc_lobby/README.md b/rc_lobby/README.md
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+++ b/rc_lobby/README.md
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+# rc_lobby
+
+Lobby PUN service bouncer.
+This immediately sends all new connections to the configured `rc_lobby_room` service.
diff --git a/rc_lobby_room/README.md b/rc_lobby_room/README.md
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+++ b/rc_lobby_room/README.md
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+# rc_lobby_room
+
+Lobby PUN service.
+This handles matchmaking and directing clients to the configured `rc_multiplayer` service to start a match.
diff --git a/rc_microtransactions/README.md b/rc_microtransactions/README.md
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+++ b/rc_microtransactions/README.md
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+# rc_microtransactions
+
+Client payment HTTP service.
+This is supposed to handle real money transactions, from what can be bought to directing the client to a payment processor.
+Only the bare minimum is actually implemented.
diff --git a/rc_multiplayer/README.md b/rc_multiplayer/README.md
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+++ b/rc_multiplayer/README.md
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+# rc_multiplayer
+
+Multiplayer LiteNetLib service.
+This handles all match functionality for all gamemodes from loading into the match to sending the clients back to the main menu (garages).
+
+This makes use of the `LiteRustLib` and `rlnl` crates which are not included in this repository but are part of the larger OpenJam project.
diff --git a/rc_plugins/README.md b/rc_plugins/README.md
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+++ b/rc_plugins/README.md
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+# rc_plugins
+
+Common plugin APIs used across many services.
+These define external interfaces for interacting with external code to expand service functionality in certain ways.
diff --git a/rc_services/README.md b/rc_services/README.md
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+++ b/rc_services/README.md
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+# rc_services
+
+Web service PUN service bouncer.
+This immediately sends all new connections to the configured `rc_services_room` service.
diff --git a/rc_services_room/README.md b/rc_services_room/README.md
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+++ b/rc_services_room/README.md
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+# rc_services_room
+
+Web services PUN service.
+This handles the primary functionality for the client, from sending config data to the client during login to garage bay operations.
diff --git a/rc_singleplayer/README.md b/rc_singleplayer/README.md
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+++ b/rc_singleplayer/README.md
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+# rc_singleplayer
+
+Singleplayer PUN service bouncer.
+This immediately sends all new connections to the configured `rc_singleplayer_room` service.
diff --git a/rc_singleplayer_room/README.md b/rc_singleplayer_room/README.md
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+++ b/rc_singleplayer_room/README.md
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+# rc_singleplayer_room
+
+Singleplayer PUN service.
+This handles singleplayer functionality, though there is not much functionality there since it was designed to be mostly functional without an internet connection.
+This sends NPC vehicles for the client to spawn into the match as well as saving the end of match results (scores).
diff --git a/rc_social/README.md b/rc_social/README.md
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+++ b/rc_social/README.md
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+# rc_social
+
+Social PUN service bouncer.
+This immediately sends all new connections to the configured `rc_social_room` service.
diff --git a/rc_social_room/README.md b/rc_social_room/README.md
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+++ b/rc_social_room/README.md
@@ -0,0 +1,4 @@
+# rc_social_room
+
+Social PUN service.
+This handles clan, friend, party, and custom game functionality.