Structural Engineering · Architecture

Stop reading about forces.
Start feeling them.

Build it. Load it. Watch it fail — then figure out why.

Every game here runs on the same verified solvers that power our calculators. When your truss buckles, it buckles for the right reason — so the intuition you build is intuition you can trust in real design work.

✓ Real physics — powered by our verified engines

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Games by design code

Every game below runs on the site's verified code engines — pick the regulation you are studying.

RYTEİE 2019Building Detective Hook Angle Wall Slenderness

TBDY 2018Isolation Designer Spectrum Workshop Shear Wall Layout Strong Column Showdown Liquefaction Hunt Link Length

ÇYTHYEBuckling Hunter Where Does the Connection Fail?

TS 500Rebar Balance Column Interaction Shear Failure

TS 498Who Carries the Load?

UFC 3-340-02Shelter Commander Pressure–Impulse Map Closed Room Layer Architect When the Foam Bottoms Out Sensitive Equipment

🏗️ Structural Intuition

Feel how loads travel, where things break, and why engineers size members the way they do.

İlk iki oyun Strateji ve Zekâ Oyunları bölümünden gelir; ikisi de doğrudan yapı mühendisliği konularını işler. Kartlar oynanış derinliğine göre sıralanmıştır: oyun mekaniği, etkileşim sayısı ve kod derinliği ölçülerek.

Design towers, hospitals and shelters against stylised earthquake, blast and hurricane scenarios (game units, not a code calculation). Budget is finite; every choice costs somewhere else in the structural system.

Advanced Resource Strategy

Shelter Architect

Layer soil, steel and composite in a simplified educational penetration and shock model (game units, not UFC 3-340-02). One weak layer and the whole defence falls — you decide where depth ends.

Advanced Layered Defence

Shelter Commander

Keep the threat far away or pour more concrete? Set the standoff, wall thickness and reinforcement against a vehicle bomb — load, SDOF response, rotation, shear and spall from the UFC 3-340-02 engines.

Advanced Blast Protection

Layer Architect

A thick, strong envelope does not protect everything: foam behind the concrete cuts the shock threefold, foam in front amplifies it. Order the layers with a 1D shock hydrocode — BlastShield educational edition.

Advanced Blast Protection

When the Foam Bottoms Out

Foam only cushions until it is fully crushed. Under a bigger blast a thin layer bottoms out and passes the load straight through — size it to the threat with a 1D shock hydrocode.

Advanced Blast Protection

Sensitive Equipment

A strong envelope protects the structure, but the floor shock still reaches the equipment. A stiff mount can amplify it; a soft isolator cuts it — at the price of rattle space. Base-excited isolator engine.

Advanced Blast Protection

In a room the danger is often not the first shock but the long gas pressure behind it. Watch shock, gas and the wall period on one time axis, then open the right vent — UFC 3-340-02 engines.

Advanced Blast Protection

Pressure–Impulse Map

The same blast hits one wall as an impulse and another as a pressure. Predict the regime, learn when sandbags help, and move every threat below the P–I curve — SDOF engine verified against closed-form asymptotes.

Intermediate Blast Protection

Shelter requirements are thresholds, not gradients. One extra dwelling — or one extra square metre — can turn zero into dozens of square metres.

Beginner Shelter Code

When Concrete Counts for Nothing

Two conditions must hold together. Cross the axial threshold by 2 kN and the concrete contribution vanishes — stirrup demand jumps like a step.

Advanced Capacity Design

60 seconds. How many rapid engineering size estimates can you get within range? Real rule-of-thumb formulas, real-time scoring.

All levels Timed Challenge

60 seconds. True or false — as many verified engineering facts and formulas as you can judge correctly before the clock runs out.

All levels Timed Challenge

SpacePlan Ergonomics

Position sink, stove, and fridge until all three work-triangle legs land inside the published NKBA limits.

Beginner NKBA Guidelines

The Punching Perimeter

Doubling slab depth cuts the punching ratio by more than half — and a corner column is far worse than you expect. Both for the same reason.

Intermediate Punching Shear

Building Detective

You are the licensed firm's engineer: pick core locations, find the real concrete strength, classify columns and decide whether the storey is risky — RYTEİE 2019, anchored to the ministry's worked example.

Advanced Risk Assessment

A 90° hook can cost a column half its risk limits. Change spacing, hook, bar size and legs — the RYTEİE group and limits update instantly from the engine.

Intermediate Risk Assessment

Buckling Hunter

A bigger section or one more brace? Find the cheapest column and beam that carry the load — until the other axis takes over. ÇYTHYE 2018 engine, 52 EN 10365 sections.

Advanced Steel Stability

Strong Column Showdown

A bigger beam is not a safer frame. Size beam and column so hinges form in the beams, not the column — TBDY 2018 §9.3 engine with automatic doubler plates.

Intermediate Steel Seismic

An eccentric brace link works like a fuse: too short and rotation explodes, too long and strength fades. Find the window — TBDY 2018 §9.8 engine.

Intermediate Steel Seismic

Isolation Designer

No lead core gives the largest force; too big a core breaks the 30 % damping limit. Size the bearings, keep the displacement inside the seismic gap — TBDY 2018 Chapter 14 engine.

Advanced Seismic Isolation

Spectrum Workshop

Pick 11 ground motion records — at most 3 from one earthquake — and find the set that carries energy where your building lives. TBDY 2018 §2.5 engine, synthetic record library.

Intermediate Seismic

Shear Wall Layout

Put the walls where the torsion disappears: bring the centre of rigidity onto the centre of mass. TBDY 2018 Chapter 17 engine, equations verified against the official text.

Intermediate Seismic

More steel is not more safety: add bars and watch the moment–curvature curve shrink. TS 500 checks and a fiber-section engine decide.

Intermediate Reinforced Concrete

Who Carries the Load?

Which room is heavier, where does snow pile up, and what really governs a light roof? Live load, snow, wind and combinations from the TS 498 engine.

Wall Slenderness

Why does a timber floor cut the slenderness limit to 0.55, how does a masonry pier fail, and is it cheaper to thicken it or shrink the window? RYTEİE 2019 Chapter 7 engine.

Intermediate Masonry

Column Interaction

Does axial load weaken a column? Below the balanced point it makes it stronger. Find the safe columns on the interaction diagram — TS 500 engine.

Intermediate Reinforced Concrete

Shear failure gives no warning. When is minimum steel enough, when do stirrups need design, and when can no stirrup save the beam? TS 500 engine.

Intermediate Reinforced Concrete

Where Does the Connection Fail?

A bolted connection is usually torn by the plate, not the bolt. Predict the limit state, pick the right fix and design the cheapest connection — ÇYTHYE Chapter 13 engine.

Intermediate Steel

Liquefaction Hunt

Loose sand does not liquefy everywhere: groundwater, fines and plasticity decide. Read the borehole log, raise the water table and densify the soil — TBDY 2018 Annex 16B engine.

Intermediate Geotechnics

A beam-column joint fails its shear check. Your instinct says add rebar. Try it — and watch the demand-capacity ratio get worse, not better.

Intermediate Joint Shear

Fit the Exit — Escape Simulation

Change a floor's area and use class, then watch the occupant load, the required escape width and the number of exits change live. Driven by the Turkish fire code engine.

Beginner Egress Capacity

Rigid or Flexible?

A rigid raft forgives a wrong subgrade modulus. A flexible one does not. Find out how thick a raft must be to count as rigid — the answer is sobering.

Advanced Foundations

Where the Web Runs Out

Boundary elements take 40% of a long wall. Shorten the wall and they take more — until the whole section is boundary and no web is left.

Intermediate Shear Walls

Short Column Killer

Slide a partial-height infill wall up a column and find the height where brittle shear kills it — the classic captive-column failure.

Advanced Capacity Design Shear

Detail Master: Cold Bridge

Same U-value, same materials — reorder the roof layers and watch the deck swing from 18.7°C to below freezing.

Intermediate ISO 6946

Plastic Collapse Challenge

Find the true collapse load from plastic hinge mechanisms — and see why the propped cantilever's hinge sits at 0.414L, not midspan.

Advanced Plastic Limit Analysis

Compartment Value

The same suppression system doubles the compartment in one occupancy and removes the limit entirely in another. Find out which is which.

Intermediate Fire Compartments

Site Logistics & Sequence Master

Crash the schedule to hit a 40-day deadline — but only the critical path actually moves the finish date.

Intermediate CPM Scheduling

Break the Frame

Design the lightest column that survives the load. Pick too small and it breaks — real stress physics, no faking it.

Beginner Statics

Amphibious City Architect

Design a floating platform that stays upright — stability scales with the square of the beam, and negative GM means capsize.

Advanced Buoyancy & Stability

Maximize the Floor Area

Fixed plot, fixed setbacks, fixed zoning limits. Push the floor count as high as you can — go one floor too far and you're over the legal limit.

Beginner Zoning / KAKS

A 1 cm change in level can add metres of ramp. See how much floor area an accessible ramp really takes once landings are counted.

Beginner Accessibility

Seismic Diagrid Tower

Find the diagonal angle that minimizes drift — shear wants 35°, bending wants 90°, and the winner depends on how slender your tower is.

Advanced Diagrid Stiffness

Blueprint Detective

Seven drawings, seven verdicts. Find the coordination error that would fail on site — or correctly clear the one that's fine.

Intermediate Drawing Review

Deep Underground Atrium

Design a diaphragm wall for a sunken atrium — drop the water table and watch the lateral load swing by 66%.

Advanced At-Rest Pressure + Water

Gaudí Funicular Arch Builder

Find the shortest arch rise your abutments can hold — Gaudí's hanging-chain method, inverted, in real thrust numbers.

Intermediate Funicular Geometry

Cantilever Villa Architect

Find the shortest back-span that still keeps a dramatic cantilevered floor from tipping forward.

Intermediate Moment Equilibrium

Solar Envelope Architect

Find the tallest building that keeps a neighbor's solar collector lit all day, worst case included — the binding hour usually isn't noon.

Advanced Solar Access Rights

Masonry Dome Restoration

Find where a historic dome starts cracking and place the tension ring — the crossover angle is the same for every spherical dome ever built.

Advanced Shell Membrane Theory

Tune the Damper

Find the minimum damping that keeps a building's earthquake response under the safety limit — too little fails, too much wastes money.

Intermediate Seismic Dynamics

ArchStyle Master

Identify architectural styles from the structural logic that makes them possible, not just how they look.

Beginner History & Structure

Match the Frequency

Tune a building's stiffness until its natural period hits the target — real modal eigenvalue physics.

Intermediate Modal Analysis

Suspended Cable Museum

Find the sag that keeps tension within anchor capacity — and watch where the parabolic shortcut stops being safe to use.

Advanced Catenary vs Parabola

Hold Back the Soil

Find the minimum retaining wall width that resists overturning from real earth pressure. Too narrow and it tips.

Intermediate Earth Pressure

Tune the K-Factor

Adjust a column's effective-length factor until its buckling capacity hits the target. Small changes matter more than you'd think.

Intermediate Buckling

Wedding Cake Zoning Architect

Choose one setback distance to maximize buildable floor area under a sky-exposure-plane envelope — the rule that shaped old New York's skyline.

Advanced Sky Exposure Plane

Set the Perimeter

A fixed accidental-explosion scenario. Set the safety perimeter radius to exactly match the required civil-protection standoff distance.

Intermediate Civil Protection

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