Research Cost Shaper

Curve designer for the Factorio mod. Everything runs in your browser; nothing leaves it unless you click Share.

Drag a point to move it; keep dragging past the top or bottom edge to go up or down by ×10 per step. Scroll over a point to scale it. Double-click empty space to add a point, double-click a point to remove it. Coloured lines mark where each science pack is unlocked.

Colour by

needed to reach the selected tech unlocked after it. Columns are prerequisite depth.

Save or share this run

Save keeps this modpack and curve in this browser, under Recent. Share also creates a short link anyone can open.

Paste export

In game, type /rcs-export and copy the selected text. Or copy the contents of rcs-export.txt.