diff --git a/README.md b/README.md
index 4f58c2a..fe64eda 100644
--- a/README.md
+++ b/README.md
@@ -21,9 +21,15 @@ This is a game design document template, ready to be forked by you.
 ## Features
 * Open to be forked by anyone, really.
 * Wiki-friendly hierarchical structure.
-* [Mermaid](http://mermaid.js.org/) used/recommended for flowcharts and diagrams.
+* [Mermaid](http://mermaid.js.org/) used/recommended for flowchartsm, and diagrams (sequence, state, etc.).
 * Team-friendly, assuming your team can use Git and Markdown.
 
+## TODO
+* Document game object states/state machines.
+  * Needed by (or can be used by) players, NPCs, and tetrominoes alike.
+  * Mermaid can diagram them. Put mermaid to work.
+* Roadmaps and asset lists can be beneficial. Maybe more project management than design doc turf though.
+
 ## How To Fork
 I don't personally use Github. I don't want to make it easy for code to become training data, though in truth I know that's a losing battle since [intellectual property law is likely only applied one-way from wealthy to unwealthy individuals](https://arstechnica.com/tech-policy/2025/02/meta-defends-its-vast-book-torrenting-were-just-a-leech-no-proof-of-seeding/). Either way, I fight in my own way.