Hold the Load: Building Game

Build a bridge, a tower or a roof, load it up and see if it holds. Hold the Load is an engineering puzzle with real structural physics: the force in every bar is actually calculated, so you see right away where it pulls, where it pushes and, if it breaks, exactly why. Place bars between the nodes, pick a material, then tap Load. If the wood cracks, the steel bends or a footing gives way, find the weak spot and try again. • 202 levels in 13 chapters plus challenges, from your first triangle to trains on viaducts • Wood, steel, concrete and cables: each material behaves differently • Footings, slabs, piles and anchors on rock, sand and clay, in water and on unknown ground • Wind, snow, moving trains and cranes, building in stages and repairing old bridges • See every bar's strain as a percentage whenever you want a hint • Up to three stars based on cost: can you find a cheaper solution? Stars move you up the ranks • A daily challenge and records for the longest cantilever, the tallest tower and the heaviest load Each chapter adds one new idea and shows why it works. Great for civil engineering and architecture students, for engineers and for anyone who loves bridges and puzzles. The first three chapters, the challenges and the daily challenge are free. Premium is a one-time purchase that unlocks 155 more levels in 10 chapters. No ads, no subscription, no account, and it works offline. Available in 28 languages.