Comparison

Door Slammers 3 Drag Racing vs Engine Simulator

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Door Slammers 3 Drag Racing

Experience realistic drag racing focused on driver skill and precise tuning. Master launch timing, shift points, and vehicle upgrades to compete against others in challenging races. Earn upgrades through gameplay or use in-app purchases for faster customization.

Highlights
  • Realistic drag racing physics
  • Skill-based gameplay
  • In-depth vehicle tuning
  • Multiplayer competition
  • Earnable upgrades
  • In-app purchases for customization
Features
Read full description

Door Slammers is the original drag racing series built for players who want realism, not shortcuts. Designed from the start to reflect how drag racing works, DS3 focuses on skill, precision, driving, tuning, and split second decision making rather than gimmicks or imitation. This is drag racing the way it’s meant to be. No fake physics. No borrowed systems. Just authentic performance, precise timing and the challenge of chasing the perfect run. Every vehicle and upgrade is purpose built for drag racing. Engines, transmission, tires, suspension, gearing, boost and nitrous all affect performance in meaningful ways. Small adjustments matter and learning how your setup works is part of the fun. Skill Over Shortcuts. There’s no automation. Launch timing, shift points, and boost usage decide the outcome of every race. Wins aren’t given, they’re earned through practice, reflexes, and smart tuning. Test and Tune, Bracket Racing and Heads Up – Tune your vehicle to optimum performance. Compete against other racers and see how your times stack up. Door Slammers is designed by people who understand and respect the sport. From how cars accelerate to how upgrades interact, everything is built to make races feel intense, fair, and rewarding run after run. Progress through the game by racing and earning upgrades or choose in app purchases if you want faster access to customization and performance options for your vehicles. Privacy Policy https://app.termly.io/policy-viewer/policy.html?policyUUID=3a71ceed-ea52-4ed5-bc6b-dab4d83989a7 EULA https://app.termly.io/policy-viewer/policy.html?policyUUID=bf1024a9-b201-4c12-8aaf-90f76ea9fa05

About

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.

Highlights
  • Physics-based engine simulation
  • Build engines from scratch
  • Tune fuel and ignition maps
  • Real-time power and torque readings
  • 3D engine visualization
  • Global leaderboard
Features
Read full description

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://enginesimulator.app/community-guidelines.html Privacy Policy: https://enginesimulator.app/privacy-policy.html Support: https://enginesimulator.app/support.html

Screenshots

Door Slammers 3 Drag Racing4 screens
Engine Simulator4 screens

Verdict

The call

The clearest difference is review sentiment: Engine Simulator at 79% against Door Slammers 3 Drag Racing's 49%. Engine Simulator also leads on rating (4.3 vs 3.9). Door Slammers 3 Drag Racing's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (460 vs 127). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Door Slammers 3 Drag Racing sells 10 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.

ReceptionRating · Positive reviews · Number of ratings

Engine Simulator holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 460 and 127 respectively. Written reviews point the same way: 49% of Door Slammers 3 Drag Racing's written reviews are positive against 79% of Engine Simulator's.

UpkeepUpdate frequency

Door Slammers 3 Drag Racing ships an update every 5 days, Engine Simulator every 3 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 7 level
Door Slammers 3 Drag Racing versus Engine Simulator: the parameters behind the verdict, then further details
ParameterDoor Slammers 3 Drag RacingEngine Simulator
PriceFreeFree
Rating3.9 (460 ratings)4.3 (127 ratings) — better
Positive reviews48.9% of reviews78.8% of reviews — better
Number of ratings460 — better127
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#44 — better#55
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better18.6
Further details — not scored
Size2.0 GB22 MB
Age rating12+4+
DeveloperVirtual DynoMUHAMMAD SAAD ATA

Customer experience

Door Slammers 3 Drag Racing

All ratings460 ratings
Positive69.3%
Neutral7.6%
Negative23.0%
Written reviews180 reviews
Positive48.9%
Neutral17.2%
Negative33.9%

Engine Simulator

All ratings127 ratings
Positive84.3%
Neutral5.5%
Negative10.2%
Written reviews99 reviews
Positive78.8%
Neutral9.1%
Negative12.1%

In-app purchases

10 purchases

Door Slammers 3 Drag Racing

One-time10
  • 10 Gold Coins$1.99
  • 25,000 Game Cash$1.99
  • 100,000 Game Cash$4.99
Show 7 more
  • 50 Gold Coins$4.99
  • 150 Gold Coins$9.99
  • 250,000 Game Cash$9.99
  • 300 Gold Coins$14.99
  • DS3 500,000 Cash$14.99
  • 1,000,000 Game Cash$19.99
  • 500 Gold Coins$19.99
1 purchases

Engine Simulator

One-time1
  • Lifetime$8.99

Questions

Is Door Slammers 3 Drag Racing free?
Door Slammers 3 Drag Racing is free to download, with in-app purchases available.
Is Engine Simulator free?
Engine Simulator is free to download, with in-app purchases available.
Which has better reviews, Door Slammers 3 Drag Racing or Engine Simulator?
Engine Simulator is rated higher. Door Slammers 3 Drag Racing averages 3.9 out of 5 from 460 ratings, while Engine Simulator averages 4.3 from 127 ratings.
Do Door Slammers 3 Drag Racing or Engine Simulator have ads?
Neither Door Slammers 3 Drag Racing nor Engine Simulator shows ads.
Which is updated more often, Door Slammers 3 Drag Racing or Engine Simulator?
Door Slammers 3 Drag Racing ships an update every 5 days, and Engine Simulator every 3 weeks. Most recently, Door Slammers 3 Drag Racing was updated on October 19, 2026 and Engine Simulator on October 18, 2026.
Which is more popular, Door Slammers 3 Drag Racing or Engine Simulator?
Door Slammers 3 Drag Racing currently peaks at #44 in the App Store charts, and Engine Simulator at #55. Chart position reflects recent download velocity rather than total install base.

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