ChemRage for Windows

Ability Draft, drawn on the game.

The desktop app is the website plus two things a browser cannot do: it captures the Dota window without a share prompt, and it draws the recommendations over the draft itself — outlines on the tiles, your build strength, the next two picks — click-through, so the game keeps every click and key.

Download for Windows

Windows 10/11, 64-bit. Signed (publisher: Eric Schmitt). While a new release is still building its download history, SmartScreen may still say "Windows protected your PC": check that the publisher reads Eric Schmitt, then click More info → Run anyway. Installs for your user only, no admin prompt, and updates itself from here.

Using it

1. Open ChemRage, sign in with Steam. Without signing in you get the free view: tiles coloured by their base win rate, no recommendations.
2. Set Dota to borderless window on your main monitor (Settings → Video → Display mode). Nothing can draw over exclusive fullscreen.
3. Queue an Ability Draft game. When the draft starts, press Start capture in the ChemRage window; the overlay appears on its own.
4. Click the ring next to your player card to tell it which seat is yours, or pick it in the app.

Keys

• Alt (hold): hides the overlay so you can read a tooltip.
• Ctrl+Shift+O: overlay on/off.
• The small menu at the top edge toggles each layer and stops the draft.

What it reads

Only the pixels on your screen — the same picture you see. No game files, no memory, nothing from other players. The overlay stays on top of a borderless window; it never touches the game.