TRUSSFALL vs Engine Simulator
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
TRUSSFALL
Build and test realistic bridge designs across 99 engineering trials. Utilize various materials and structural principles to create stable crossings for vehicles. Earn stars by building strong structures that withstand live load simulations.
- 99 engineering trials
- 4 realistic materials
- Live load simulation
- Multiple bridge templates
- 10 distinct biomes
- On-device data processing
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TRUSSFALL is bridge engineering, no shortcuts. Build and stress-test real bridge designs across 99 engineering trials. Place beams, add cables, and triangulate trusses — then send a car, truck or mega-rig across to see if your structure holds. Four materials unlock as you advance: - Wood — cheap, low strength, good for short spans - Steel — your workhorse: strong, stiff, balanced - Cable — tension-only; build suspensions and cable-stays - Reinforced concrete — heaviest, strongest, end-game Build your truss. Run the live load. Watch a vehicle roll across. If your design holds, you earn stars. If your weakest joint snaps under tension, gravity wins. EVERY LEVEL PLAYABLE FROM DAY ONE All 99 trials are free to play. The Lifetime Unlock removes the hint paywall (3 free hints per game), grants unlimited hints, and reveals all engineering-accurate bridge templates. Optional hint packs available too. WHAT'S INSIDE - 99 engineering trials with progressive difficulty - 10 distinct biomes with unique terrain features - 4 materials with realistic structural properties - Warren, K-truss, Pratt, suspension, cable-stay, arch templates - Live load simulation with stress-tested physics - 3 free hints; Lifetime gives unlimited - Family Sharing supported (Lifetime only) - 100% on-device data — zero tracking, zero ads, no accounts ENGINEERED FOR THE PATIENT Truss math is computed live. Joints carry real loads. Members have real strength limits. Cables can only pull, never push. These are the same principles a civil engineer uses — and the level designs reward thinking like one. If you've played Bridge Constructor or Poly Bridge and wanted something with more engineering depth, this is for you. PRIVACY-RESPECTING BY DESIGN No analytics. No third-party SDKs. No data collection. Your progress lives on your device. Always. Built by a single developer who couldn't find the engineering puzzle game he wanted to play.
Engine Simulator
Explore the physics of piston engines by building, tuning, and testing them. Simulate combustion and rigid body motion in real-time. Compete with others on a global leaderboard by posting your creations.
- Physics-based engine simulation
- Build engines from scratch
- Tune fuel and ignition maps
- Real-time power and torque readings
- 3D engine visualization
- Global leaderboard
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Engine Simulator is a physics-based piston engine sandbox. The sound and motion come from a real rigid body simulation of the crank, pistons, valves, and combustion, not recordings. Start an engine, work the throttle, and tune its fuel and ignition maps in the ECU. Build one from scratch (layout, bore, stroke, cam, firing order) or describe what you want and have it generated on device. Watch it run in 3D, read live power and torque on the dyno, or push it past the limiter until it breaks. Post your engines to the global leaderboard and compare against other builders. Engine Simulator for iOS is an unofficial port. It is not affiliated with, endorsed by, or supported by AngeTheGreat (Ange Yaghi), the creator of the original open source Engine Simulator. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Community Guidelines: https://saada7553.github.io/community-guidelines.html Privacy Policy: https://saada7553.github.io/privacy-policy.html Support: https://saada7553.github.io/support.html
Screenshots
Verdict
The clearest difference is rating: TRUSSFALL at 5.0 against Engine Simulator's 4.3. TRUSSFALL also leads on update cadence (weekly vs every 2 months). Engine Simulator's advantage is ratings volume (90 vs 2) and chart position (#74 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. TRUSSFALL sells 3 one-off in-app purchases and Engine Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
TRUSSFALL holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Engine Simulator has 90 ratings behind it against 2, so its average is the more settled of the two.
TRUSSFALL ships an update weekly, Engine Simulator every 2 months. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.
| Parameter | TRUSSFALL | Engine Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.3 (90 ratings) |
| Positive reviews | — | 82.1% of reviews |
| Number of ratings | 2 | 90 — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | #74 — better |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | CIPRIAN ALEXANDRU FRASINESCU | MUHAMMAD SAAD ATA |
Customer experience
TRUSSFALL
Engine Simulator
In-app purchases
TRUSSFALL
- 5 Hints$0.99
- 25 Hints$2.99
- Lifetime Unlock$4.99
Engine Simulator
- Lifetime$4.99
Questions
Is TRUSSFALL free?
Is Engine Simulator free?
Which has better reviews, TRUSSFALL or Engine Simulator?
Do TRUSSFALL or Engine Simulator have ads?
Which is updated more often, TRUSSFALL or Engine Simulator?
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