Available on iOS
Ready to think in heat?
Keloric is on the App Store. 78 hand-crafted levels, a fresh daily puzzle every morning, and endless mode for when you can't stop. Fundamentals pack is free — no account required.
Keloric is a thermal strategy puzzle game built around the physics of heat diffusion. Each level presents a 10×10 grid of materials — metal, glass, wood, air, and impassable walls — arranged by the puzzle designer.
Your job: place a limited budget of hot and cold sources to steer heat through the grid and bring specific target cells into their required temperature ranges. The simulation runs in real time, and every material conducts differently.
Solve within or under par source count and you earn three stars. The physics allow many paths — but efficiency is the art.
Live simulation — Level 001 "First Contact"
Moderate conductivity. A useful bridge — enough transfer to reach targets without overwhelming adjacent cells.
Low conductivity. A near-insulator. Dramatically slows diffusion — useful for isolating sensitive targets.
Negligible conductivity. Open cells that barely transfer heat — effective thermal barriers between paths.
Zero conductivity. Impassable. No sources may be placed on walls — they define the fixed geometry of each puzzle.
Every cell renders its temperature as a color on a six-stop scale — from deep blue at −10°C through ambient dark at 22°C to incandescent white-yellow at 150°C. You read the simulation state at a glance.
Analyze the material layout and target cells. Identify which paths conduct efficiently — and which block heat entirely. Each layout is a logic puzzle before you place a single source.
Tap to place hot (+150°C) or cold (−10°C) sources within your budget. Sources lock to their fixed temperature and drive diffusion outward through adjacent non-wall cells.
Hit Simulate and watch the thermal field evolve in real time at 10 ticks per second. The color field updates live as heat diffuses toward equilibrium.
Every target cell must reach its required temperature range simultaneously to win. Adjust source placement and re-run until every target border turns green.
Conductivity-weighted cellular automaton at 10 ticks/second. Numerically stable within −15°C to 155°C — no runaway oscillation.
Continuous temperature-to-color mapping renders the entire grid state at a glance. No HUD numbers needed to understand the physics.
Three-star system rewards solutions at or below par source count. Brute force gets you through — elegance earns the stars.
Universal, portrait-optimized. Grid scales from 30pt cells on iPhone to 44pt on iPad — readable at arm's length on either device.
Fundamentals (free, 18 levels), Advanced (20), Extremes (20), and Impossible (20) — paid packs are one-time purchases. No subscription, no energy system.
One generated puzzle per day, identical for everyone. Difficulty ramps Monday → Sunday. Solve consecutive days to build a streak — one missed day per month forgiven.
How far can you go? Solve as many randomly generated levels in a row as possible. Difficulty climbs each level then plateaus. Beat your own best streak.
Share custom levels via short paste codes or .keloric files. Imports land in a SHARED pack — no signups, no servers, no friction.
Daily streaks and Endless best scores sync to leaderboards. Ten achievements track pack completion and streak milestones.
No lives, no ads, no energy meters, no analytics SDKs. The challenge is the physics. Keloric respects your time and your intelligence.
Keloric is on the App Store. 78 hand-crafted levels, a fresh daily puzzle every morning, and endless mode for when you can't stop. Fundamentals pack is free — no account required.