Comparison

Engineering Adventures vs Slime Blocks

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

Head to head
About

Engineering Adventures

This app complements an out-of-school engineering curriculum by providing audio messages triggered by QR codes in accompanying journals. It covers 11 different engineering units, from building earthquake-resistant structures to designing space gloves.

Highlights
  • QR code scanner
  • Audio messages from characters
  • 11 engineering units
  • Complements curriculum
  • Interactive learning
Features
Read full description

Messages from the Duo is designed to be used in conjunction with the out-of-school time engineering curriculum Engineering Adventures. Eleven units are available, including: 1. Hop to It: Safe Removal of Invasive Species 2. Bubble Bonanza: Engineering Bubble Wands 3. To the Rescue: Engineering Aid Drop Packages 4. Shake Things Up: Engineering Earthquake Resistant Buildings 5. Go Green: Engineering Recycled Racers 6. Liftoff: Engineering Rockets and Rovers 7. The Sky’s the Limit: Engineering Flying Technologies 8. Music to My Ears: An Acoustical Engineering Challenge 9. A Slippery Slope: Engineering Avalanche Protection Systems 10. Light Up the Night: An Electrical Engineering Challenge 11. In Good Hands: Engineering Space Gloves Educators and kids can use the special QR code scanner in this app to scan the codes in their Engineering Journals and play audio messages from India and Jacob, Engineering Adventures’ “travelling duo.” For more information about how to download or purchase an Educator Guide and Engineering Journal, visit the Engineering Adventures website at engineeringadventures.org. Produced by Owen Berliner and the Engineering is Elementary Team Developed by Sean Fitzgerald and Tarrant Cutler Illustrated by Ross Sullivan-Wiley

About

Slime Blocks

Features
Read full description

Place jelly slime blocks on an 8×8 grid, clear rows and columns, and watch your blocks blink, wobble, and celebrate — every piece has its own personality! Slime Blocks: Offline Game — 4 modes, 1000+ levels, 23 collectible skins. ADVENTURE MODE Hundreds of hand-crafted puzzle levels, each hiding a secret pixel art masterpiece. Complete levels to reveal 11 stunning hidden paintings — from robots to cats to space scenes. BLOCK RUSH Race against a creeping monster across 10 worlds. Place blocks fast, survive boss fights, and unlock new worlds with unique themes. High-score arcade action! CLASSIC MODE Endless block puzzle. No time limits. Play at your own pace, beat your personal best, and enjoy the most satisfying line-clear animations in the genre. Perfect for relaxing. DAILY CHALLENGE A new puzzle every day. Build your streak, compete with the world, and earn exclusive rewards. COLLECT 23 ADORABLE SKINS Unlock Common, Rare, and Epic slime characters as you play — Cool Shades, Pirate, Party Hat, Action Heroes and more. No pay-to-win. Earn them all for free. POWER-UPS Stuck? Use Laser, Bomb, Storm, Color Splash, or Shuffle to turn the game around. Earn power-ups through achievements — no forced purchases. 76 ACHIEVEMENTS Bronze, Silver, Gold, and Diamond tiers. Each unlock rewards: power-ups, exclusive animations, and bragging rights. LIVING BLOCKS Every slime block has eyes that blink, pupils that track your moves, and emotions that react to the game: • Scared when the board fills up • Happy when you clear a line • Amazed during big combos • Dancing when you win Satisfying wobble physics, 70+ particle effects, and smooth 60fps animations make every move feel rewarding. WHY PLAYERS LOVE IT • No WiFi needed — fully offline • No time pressure in Classic mode • Auto-saves your progress • Family-friendly, kid-approved • Strategic depth for puzzle veterans • Relaxing or intense — you choose HOW TO PLAY 1. Drag slime blocks onto the 8×8 grid 2. Fill complete rows or columns to clear them 3. Watch your slimes react and celebrate 4. Unlock skins, pixel arts, and achievements 5. Play Classic forever or conquer 1000+ levels across all modes Download free. No account needed. Play immediately.

Screenshots

Engineering Adventures3 screens
Slime Blocks4 screens

Verdict

The call

The clearest difference is in-app purchases: Engineering Adventures at none against Slime Blocks's 5. Engineering Adventures also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). Slime Blocks's advantage is update cadence (every 11 days vs every 7 months). On price and device support 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. Slime Blocks sells 5 one-off in-app purchases. Engineering Adventures asks for nothing beyond the download.

UpkeepUpdate frequency

Engineering Adventures ships an update every 7 months, Slime Blocks every 11 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
Engineering Adventures versus Slime Blocks: the parameters behind the verdict, then further details
ParameterEngineering AdventuresSlime Blocks
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings3 — better—
Update frequencyEvery 7 monthsEvery 11 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size159 MB70 MB
Age rating4+4+
DeveloperMuseum of ScienceMykola Ovcharenko

In-app purchases

None

Engineering Adventures

No in-app purchases

5 purchases

Slime Blocks

One-time5
  • Power-Up Pack$0.99
  • Remove Ads$1.99
  • Mega Power-Up Pack$1.99
Show 2 more
  • Premium Skin Bundle$2.99
  • Ultimate Bundle$3.99

Questions

Is Engineering Adventures free?
Engineering Adventures is free to download, with no in-app purchases.
Is Slime Blocks free?
Slime Blocks is free to download, with in-app purchases available.
Do Engineering Adventures or Slime Blocks have ads?
Slime Blocks shows ads; Engineering Adventures does not.
Which is updated more often, Engineering Adventures or Slime Blocks?
Engineering Adventures ships an update every 7 months, and Slime Blocks every 11 days. Most recently, Engineering Adventures was updated on October 15, 2026 and Slime Blocks on October 14, 2026.

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