JUMBO BLOCK GAME
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JUMBO BLOCK GAME

Games about rainwater, heat and the sponge city – with JUMBO JACK, the mascot of JUMBO BLOCK. Just open and play on PC, tablet or smartphone.

Play JUMBO JACK Play BLOCKS
JUMBO JACK, the elephant mascot of JUMBO BLOCK

Our games

Two games, one idea: rainwater is not waste but a resource. Stored underground, it protects against heavy rain and helps during heatwaves.

NewAction1–4 players

JUMBO JACK vs. the Droughtlings

Nasty heat goblins are heating up the city. JUMBO JACK draws rainwater from the JUMBO BLOCK storage beneath his feet and starts spraying.

  • Rapid fire, combos up to x10 and chain reactions
  • Tap rain clouds, power-ups and JUMBO MODE
  • Duel for 2–4 players on one device, leaderboard and achievements
Play now →
EngineeringPuzzle1 player

BLOCKS – the engineering game

Build an underground JUMBO BLOCK rainwater storage system module by module – compact, under roads and around obstacles.

  • Every game module is a real JUMBO BLOCK: 2.50 m cube, 13.9 m³
  • Live figures: storage volume, protected area, city tree irrigations
  • Engineering facts and a career up to Grand Engineer
Play now →

JUMBO BLOCK in numbers

2.50 medge length of a JUMBO BLOCK module
13.9 m³net storage volume per module
170.45 m²protected area per module at 100 mm rainfall and 90% sealed surface
approx. 12 °Ctemperature inside the storage – cool all year round

What the games are about

JUMBO BLOCK® is a modular system of precast concrete elements for underground rainwater storage. The modules are installed beneath roads, squares and car parks and can be fully built over.

JUMBO BLOCK GAME lets you experience this principle through play: in BLOCKS you plan the storage, with JUMBO JACK you use the stored water against heat and drought. Learn more about the technology at jumboblock.de.

  1. 1. Heavy rain – Water flows into the underground storage instead of basements and sewers.
  2. 2. Store – The water stays cool and clean underground – without using extra land.
  3. 3. Heatwave – City trees and green spaces are supplied with the stored rainwater.

Frequently asked questions

Are the games free?

Yes. All games on JUMBO BLOCK GAME are free and run directly in your browser. There are no ads, no in-app purchases and no user account.

Is any data collected?

No. There are no cookies and no tracking. Leaderboards, records and settings are stored only locally in your browser and never leave your device.

Which devices can I play on?

On PC, laptop, tablet and smartphone in any current browser. JUMBO JACK is played with mouse or finger, BLOCKS with keyboard or touch.

Who are the games for?

For older children, teenagers and adults – at home, in class or at a trade fair stand. In JUMBO JACK, 2 to 4 people can compete one after another on a single device.

Who is JUMBO JACK?

JUMBO JACK is the registered mascot of the JUMBO BLOCK brand. In the game he uses rainwater from a JUMBO BLOCK system to cool down the city.

What is JUMBO BLOCK?

JUMBO BLOCK is a modular system of 2.50 m concrete modules for underground rainwater storage. It protects against heavy rain, relieves sewer networks and keeps water available for heatwaves.