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StoneForge Labs

@stoneforgelabs.games

Solo dev at StoneForge Labs (Brno). Now building: Marble Mill — an idle game that ends. Every coin is a real collision, every hit is a note. Made with Godot. store.steampowered.com/app/5077600/…

Posts Replies Media

StoneForge Labs @stoneforgelabs.games · 3h

Light gets tired in Lethal Geometry. An Armored enemy soaks up 65% of the beam, and everything walking behind it only gets the 35% that's left. So you hit the column from behind, put a lens after the shield to charge the beam back up, or split off a fresh branch that never touches it. Wave 4. 🔦

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StoneForge Labs @stoneforgelabs.games · 07/10/2026

#WishlistWednesday: Lethal Geometry. One laser. Build a machine of mirrors, splitters and lenses that burns every step of the path, then make it better run after run. A tower defense where you engineer the damage instead of stacking towers. 🔦

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StoneForge Labs @stoneforgelabs.games · 06/10/2026

Changed in Lethal Geometry's latest build: the beam has no power cap anymore. Bonuses of the same kind add up, different kinds multiply, so a machine that mixes mirror bounces and lenses keeps getting stronger instead of stopping at 4×. Relay, wave 5. 🔦 #gamedev #indiedev

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StoneForge Labs @stoneforgelabs.games · 05/10/2026

Lethal Geometry is a tower defense with one laser. You don't stack towers, you build the machine that carries the beam: mirrors to bend it along the path, lenses on the trunk to make it stronger. Crossfire, wave 3. 🔦

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StoneForge Labs @stoneforgelabs.games · 03/10/2026

#ScreenshotSaturday: no UI, no menu, no numbers — just the diamond-era mill, six rings deep, running on its own. Every one of those marbles is a real collision on a real rail. 🔊

Six concentric rings of a marble mill on a black background in the diamond era: dozens of pale blue, amber and teal marbles gliding along glowing rails with faint payout numbers, no UI or menu visible.

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StoneForge Labs @stoneforgelabs.games · 01/10/2026

Lethal Geometry: one laser, and you build the machine that carries it. Zero mirrors and the beam just ends at the first wall. Every mirror you add is a decision — where it bends next, what it will hit, what's still dark after it. This is wave 2: the beam finally reaching the back of the column. 🪞

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StoneForge Labs @stoneforgelabs.games · 29/09/2026

Marble Mill doesn't play one tune. It gets a new one at the start of a run, every ring you build, and every meltdown — 15 melodies in rotation, lead in major, the rest of the mill in pentatonic. And the moment it melts down, you also pick a perk for the rest of the run. 🔊

A 'Pick a Perk' dialog over a dim gold-era marble mill: three cards, Radiant Lap, Amp Overtone and Mint Cascade, each describing a permanent bonus for the rest of the run, with a Reroll button below.

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StoneForge Labs @stoneforgelabs.games · 26/09/2026

#ScreenshotSaturday: Marble Mill in the diamond era, 1h 55m into a run. Every blue dot is a marble, and every hit on a peg is a note. Last line of the shop: Perpetuum mobile, 7 parts, and the last one ends the run. An idle game that ends. On purpose. #indiedev #idlegame

Marble Mill screenshot in the diamond era: concentric rings on a dark background, dotted with orange, gold and teal pegs, with dozens of pale blue marbles on the outer rings and small +17.7k payout numbers. The counter reads 47.19B at 28.84M per second. The shop on the right lists Marble, Stud, Bell, Mint, Amplifier, Prism, Mill speed, Polish, New loop and Perpetuum mobile, part 0 of 7, the last one ends the run. A yellow Melt Down bar runs along the bottom.

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StoneForge Labs @stoneforgelabs.games · 24/08/2026

Every hit in Marble Mill is pitch-quantized to a pentatonic scale — so ~1,900 collisions per second come out as a chime melody, not noise. Each era retunes the mill: copper is a muted wooden tock, diamond is glass. The machine is its own soundtrack. 🔊 #gamedev

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StoneForge Labs @stoneforgelabs.games · 23/08/2026

Idle games are built so you never leave. Marble Mill ends: a finale with credits, 100% achievements in ~3 hours, then an endless sandbox if you want to stay. Respecting your time is a feature. #ScreenshotSaturday #indiegames

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StoneForge Labs @stoneforgelabs.games · 20/08/2026

I'm building Marble Mill: an idle game where every coin comes from a marble physically hitting a peg. No abstract number going up — you watch the machine make the money. And it ends after ~3 hours. On purpose. Solo, in Godot. #indiedev #GodotEngine

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