FL Tetris Game

Let's be straightforward about this one, because the pack itself is: FL_TetrisGame is a placeholder stub. The README calls it out explicitly - "reserved for future Tetris game functionality, currently a no-op" - and the node's own schema backs that up. No inputs, no outputs, nothing configurable. It exists in the graph as a name and a category and does nothing else right now.

Fill-Nodes, the pack it lives in, is filliptm's sprawling personal toolbox - hundreds of nodes across image processing, PDF handling, GPT/Gemini/Runway wrappers, audio-reactive effects, and more. Buried in there is a small "Game Nodes" section with exactly two members: this one and FL_BulletHellGame, both marked the same way. Reading between the lines, it's a dev reserving a name and a slot in the node menu for something they intend to build later, rather than shipping half-working game logic before it's ready. That's a defensible call - an empty stub that clearly says "not yet" is a lot less confusing than a broken half-implementation pretending to work.

How it works

It doesn't, yet. There's no processing logic to describe, no algorithm, no rendering - the node registers in ComfyUI's node list under Fill Nodes → games and that's the extent of its current behavior.

The inputs and outputs that matter

None. Zero required inputs, zero optional inputs, zero outputs. If you drag it onto your canvas expecting a playable Tetris board or even a static image, there's genuinely nothing here to configure or wire up.

How to install it

If you want it anyway - maybe you're tracking the pack for when it lands, or just curious - it comes bundled with the rest of Fill-Nodes; there's no separate install for one stub node. Through ComfyUI Manager, search "Fill-Nodes" and install; manually:

cd ComfyUI/custom_nodes
git clone https://github.com/filliptm/ComfyUI_Fill-Nodes
pip install -r ComfyUI_Fill-Nodes/requirements.txt

then restart ComfyUI. You'll get the whole pack - image tools, PDF handling, AI API wrappers, and this stub along with it - since Fill-Nodes ships as one install, not individual nodes.

Common issues & troubleshooting

"I added it and nothing happens." That's correct, not a bug. There's no logic behind it yet - this isn't a broken node, it's an intentionally empty one.

Looking for an actual playable game inside ComfyUI. This isn't the node for that, at least not currently. If Fill-Nodes ships real Tetris functionality in a future update, it'll presumably land here or replace this stub - but there's no timeline in the README, so don't build a workflow around it existing yet.

Wondering if you installed it wrong. You didn't - an empty node with no sockets is exactly what this one is supposed to look like right now. If you want something that actually does image or video work today, the rest of the pack has plenty on offer; this particular entry just isn't it.