diff --git a/src/Applet/Audio.ts b/src/applet/Audio.ts
similarity index 100%
rename from src/Applet/Audio.ts
rename to src/applet/Audio.ts
diff --git a/src/Applet/Init.ts b/src/applet/Init.ts
similarity index 100%
rename from src/Applet/Init.ts
rename to src/applet/Init.ts
diff --git a/src/Applet/Keyboard.ts b/src/applet/Keyboard.ts
similarity index 100%
rename from src/Applet/Keyboard.ts
rename to src/applet/Keyboard.ts
diff --git a/src/Applet/Loop.ts b/src/applet/Loop.ts
similarity index 100%
rename from src/Applet/Loop.ts
rename to src/applet/Loop.ts
diff --git a/src/Applet/Render.ts b/src/applet/Render.ts
similarity index 100%
rename from src/Applet/Render.ts
rename to src/applet/Render.ts
diff --git a/src/Applet/demo.ts b/src/applet/demo.ts
similarity index 100%
rename from src/Applet/demo.ts
rename to src/applet/demo.ts
diff --git a/src/Ecs/Collision.ts b/src/ecs/Collision.ts
similarity index 100%
rename from src/Ecs/Collision.ts
rename to src/ecs/Collision.ts
diff --git a/src/Ecs/Components.ts b/src/ecs/Components.ts
similarity index 98%
rename from src/Ecs/Components.ts
rename to src/ecs/Components.ts
index bdbe794..3860231 100644
--- a/src/Ecs/Components.ts
+++ b/src/ecs/Components.ts
@@ -1,5 +1,5 @@
 
-import { Layer, SpriteSheet } from "../Applet/Render";
+import { Layer, SpriteSheet } from "../applet/Render";
 import { Component, copyDense, copySparse, EntityState, StateForSchema, Store } from "./Data";
 
 export class Box {
diff --git a/src/Ecs/Data.ts b/src/ecs/Data.ts
similarity index 100%
rename from src/Ecs/Data.ts
rename to src/ecs/Data.ts
diff --git a/src/Ecs/Location.ts b/src/ecs/Location.ts
similarity index 100%
rename from src/Ecs/Location.ts
rename to src/ecs/Location.ts
diff --git a/src/Ecs/Lockstep.ts b/src/ecs/Lockstep.ts
similarity index 100%
rename from src/Ecs/Lockstep.ts
rename to src/ecs/Lockstep.ts
diff --git a/src/Ecs/Renderers.ts b/src/ecs/Renderers.ts
similarity index 96%
rename from src/Ecs/Renderers.ts
rename to src/ecs/Renderers.ts
index fe6cb63..ec2e315 100644
--- a/src/Ecs/Renderers.ts
+++ b/src/ecs/Renderers.ts
@@ -1,4 +1,4 @@
-import { DrawSet, Layer } from "../Applet/Render";
+import { DrawSet, Layer } from "../applet/Render";
 import { Data } from "./Components";
 import { Join } from "./Data";
 import { TransformCx } from "./Location";
diff --git a/src/Ecs/test.ts b/src/ecs/test.ts
similarity index 97%
rename from src/Ecs/test.ts
rename to src/ecs/test.ts
index ca39f7d..52f94c0 100644
--- a/src/Ecs/test.ts
+++ b/src/ecs/test.ts
@@ -1,7 +1,7 @@
-import { Select } from "../Applet/Init";
-import { KeyControl } from "../Applet/Keyboard";
-import { Loop } from "../Applet/Loop";
-import { DrawSet, Layer } from "../Applet/Render";
+import { Select } from "../applet/Init";
+import { KeyControl } from "../applet/Keyboard";
+import { Loop } from "../applet/Loop";
+import { DrawSet, Layer } from "../applet/Render";
 import { FindCollisions } from "./Collision";
 import {
     CollisionClass,
diff --git a/src/Game/Death.ts b/src/game/Death.ts
similarity index 95%
rename from src/Game/Death.ts
rename to src/game/Death.ts
index cdb2fbe..25a16d8 100644
--- a/src/Game/Death.ts
+++ b/src/game/Death.ts
@@ -1,6 +1,6 @@
-import { PlaySfx } from "../Applet/Audio";
-import { Location, Polygon, PolygonComponent, RenderBounds } from "../Ecs/Components";
-import { Create, Id, Join, Lookup, Remove } from "../Ecs/Data";
+import { PlaySfx } from "../applet/Audio";
+import { Location, Polygon, PolygonComponent, RenderBounds } from "../ecs/Components";
+import { Create, Id, Join, Lookup, Remove } from "../ecs/Data";
 import { Data, Lifetime, Teams, World } from "./GameComponents";
 
 export function SelfDestructMinions(data: Data, world: World) {
diff --git a/src/Game/GameComponents.ts b/src/game/GameComponents.ts
similarity index 95%
rename from src/Game/GameComponents.ts
rename to src/game/GameComponents.ts
index e11a608..d82d2f7 100644
--- a/src/Game/GameComponents.ts
+++ b/src/game/GameComponents.ts
@@ -1,9 +1,9 @@
-import { KeyName } from "../Applet/Keyboard";
-import { DrawSet, Layer } from "../Applet/Render";
-import { ComponentSchema, Data as EcsData } from "../Ecs/Components";
-import { Component, copySparse, Join, StateForSchema, Store } from "../Ecs/Data";
-import { DumbMotion } from "../Ecs/Location";
-import { INPUT_FREQUENCY, LockstepProcessor } from "../Ecs/Lockstep";
+import { KeyName } from "../applet/Keyboard";
+import { DrawSet, Layer } from "../applet/Render";
+import { ComponentSchema, Data as EcsData } from "../ecs/Components";
+import { Component, copySparse, Join, StateForSchema, Store } from "../ecs/Data";
+import { DumbMotion } from "../ecs/Location";
+import { INPUT_FREQUENCY, LockstepProcessor } from "../ecs/Lockstep";
 import { Buttons } from "./Input";
 
 export enum GamePhase {
diff --git a/src/Game/Input.ts b/src/game/Input.ts
similarity index 88%
rename from src/Game/Input.ts
rename to src/game/Input.ts
index c08cd4a..4bc5bd1 100644
--- a/src/Game/Input.ts
+++ b/src/game/Input.ts
@@ -1,4 +1,4 @@
-import { KeyHandler, KeyName } from "../Applet/Keyboard";
+import { KeyHandler, KeyName } from "../applet/Keyboard";
 
 export class Buttons implements KeyHandler {
 
diff --git a/src/Game/Main.ts b/src/game/Main.ts
similarity index 84%
rename from src/Game/Main.ts
rename to src/game/Main.ts
index 7bf2ddc..33c9dde 100644
--- a/src/Game/Main.ts
+++ b/src/game/Main.ts
@@ -1,13 +1,13 @@
 import pipe from "callbag-pipe";
 import subscribe from "callbag-subscribe";
 
-import { KeyControl, KeyName } from "../Applet/Keyboard";
-import { DrawSet } from "../Applet/Render";
-import { Location, PolygonComponent, RenderBounds } from "../Ecs/Components";
-import { Create } from "../Ecs/Data";
-import { RunRenderBounds } from "../Ecs/Renderers";
-import { LockstepClient } from "../Net/LockstepClient";
-import { LoopbackServer } from "../Net/LoopbackServer";
+import { KeyControl, KeyName } from "../applet/Keyboard";
+import { DrawSet } from "../applet/Render";
+import { Location, PolygonComponent, RenderBounds } from "../ecs/Components";
+import { Create } from "../ecs/Data";
+import { RunRenderBounds } from "../ecs/Renderers";
+import { LockstepClient } from "../net/LockstepClient";
+import { LoopbackServer } from "../net/LoopbackServer";
 import { Data, Engine, PlayerControl } from "./GameComponents";
 import { Buttons } from "./Input";
 
diff --git a/src/Game/Message.ts b/src/game/Message.ts
similarity index 94%
rename from src/Game/Message.ts
rename to src/game/Message.ts
index 8f26abd..6f898b0 100644
--- a/src/Game/Message.ts
+++ b/src/game/Message.ts
@@ -1,6 +1,6 @@
-import { DrawSet } from "../Applet/Render";
-import { Join, Remove } from "../Ecs/Data";
-import { TransformCx } from "../Ecs/Location";
+import { DrawSet } from "../applet/Render";
+import { Join, Remove } from "../ecs/Data";
+import { TransformCx } from "../ecs/Location";
 import { Data, GamePhase, World } from "./GameComponents";
 
 /*export function SpawnMessage(color: string, text: string) {
diff --git a/src/index.ts b/src/index.ts
index 4f87441..b9f2f5b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,9 +1,9 @@
-import { Select } from "./Applet/Init";
-import { KeyName } from "./Applet/Keyboard";
-import { BindTests } from "./Ecs/test";
-import { Data } from "./Game/GameComponents";
-import { Main } from "./Game/Main";
-import { LoopbackServer } from "./Net/LoopbackServer";
+import { Select } from "./applet/Init";
+import { KeyName } from "./applet/Keyboard";
+import { BindTests } from "./ecs/test";
+import { Data } from "./game/GameComponents";
+import { Main } from "./game/Main";
+import { LoopbackServer } from "./net/LoopbackServer";
 
 /* // Hot Module Reloading stub, if that's viable
  * declare const module: any;
diff --git a/src/Net/LockstepClient.ts b/src/net/LockstepClient.ts
similarity index 99%
rename from src/Net/LockstepClient.ts
rename to src/net/LockstepClient.ts
index 929a5cc..61c5afa 100644
--- a/src/Net/LockstepClient.ts
+++ b/src/net/LockstepClient.ts
@@ -4,7 +4,7 @@ import animationFrames from "callbag-animation-frames";
 import map from "callbag-map";
 import pipe from "callbag-pipe";
 
-import { INPUT_FREQUENCY, LockstepProcessor, LockstepState } from "../Ecs/Lockstep";
+import { INPUT_FREQUENCY, LockstepProcessor, LockstepState } from "../ecs/Lockstep";
 
 export const enum MessageTypes {
     /**
diff --git a/src/Net/LoopbackServer.ts b/src/net/LoopbackServer.ts
similarity index 96%
rename from src/Net/LoopbackServer.ts
rename to src/net/LoopbackServer.ts
index c4f8dcc..b31bed6 100644
--- a/src/Net/LoopbackServer.ts
+++ b/src/net/LoopbackServer.ts
@@ -2,8 +2,8 @@ import { Callbag } from "callbag";
 import pipe from "callbag-pipe";
 import share from "callbag-share";
 
-import { INPUT_FREQUENCY } from "../Ecs/Lockstep";
-import { catchTalkback, defer, interval, makeSubject, map, merge } from "../Utilities/Callbag";
+import { INPUT_FREQUENCY } from "../ecs/Lockstep";
+import { catchTalkback, defer, interval, makeSubject, map, merge } from "../utilities/Callbag";
 import { ClientMessage, MessageTypes, ServerMessage } from "./LockstepClient";
 
 /** Stub loopback server that handles multiple clients, for schemes where GlobalInput = LocalInput[] */
diff --git a/src/Utilities/Callbag.ts b/src/utilities/Callbag.ts
similarity index 100%
rename from src/Utilities/Callbag.ts
rename to src/utilities/Callbag.ts