Quick answer

For Infinity sci-fi miniature games and modular city builds, the Koncrete Blok (Dark) is the more flexible choice because it starts at a lower price and is designed as a fresh poured pad for factories, armies, and city blocks. Choose Crime Alley (Circle) if you want a superhero or dark knight themed street layout with a wider range of large size options. Both are urban-themed play mats from Mats by Mars, and the right pick depends on your game system and table size.

What each urban mat actually gives you

Koncrete Blok (Dark) is described as a fresh poured pad of concrete that lets you build a city, factory, or army, and it is listed as a design that fits the Infinity sci-fi miniature game. Crime Alley (Circle) is built around the dangerous streets of Gothropolis, where super villains scheme and heroes stand for the citizenry. Those descriptions point to different tabletop stories: one is a neutral industrial construction zone, the other is a narrative superhero street scene.

Size and overlay options that change the decision

Crime Alley (Circle) lists a wide range of available sizes, including 90cm x 90cm, 36”x36”, 48”x48”, 36" x 72", 48”x72”, 44"x30", and 44"x60". Koncrete Blok (Dark) also offers size and overlay options, but the supplied catalog does not list the specific measurements. If exact table dimensions matter to you, check the product page for Koncrete Blok before ordering, or choose Crime Alley when you need a confirmed large format.

How to match the mat to your game night

If you play Infinity or another sci-fi skirmish game and want a surface that reads as a construction site or industrial block, Koncrete Blok (Dark) keeps the focus on terrain you place yourself. If your group plays superhero-themed games or wants a ready-made street layout with lanes and alleys, Crime Alley (Circle) does more of the storytelling before you deploy a single model. Both accept optional overlays, so you can add measurement guides without changing the artwork.

Trade-offs at a glance

  • Theme flexibility: Koncrete Blok (Dark) is a neutral poured-concrete surface, while Crime Alley (Circle) comes with a specific Gothropolis superhero narrative. Pick Koncrete Blok for generic city terrain; pick Crime Alley for a named setting.
  • Size certainty: Crime Alley lists exact sizes such as 36”x36”, 48”x48”, and 44”x60”, but the supplied facts for Koncrete Blok do not list measurements. If you need a confirmed large size, verify Koncrete Blok on its product page or choose Crime Alley.
  • Game system fit: Koncrete Blok and Quinfinity Citrine are both described as fitting Infinity, while Crime Alley is framed around a superhero city. Match the mat to the game you actually play most often.

Product facts

  • Mats by Mars: Koncrete Blok (Dark) Tabletop Wargaming Play Mat: Koncrete Blok (Dark) is described as a fresh poured pad of Koncrete where you can build your city, a factory, or an army, and it is listed as fitting the Infinity Sci-fi Miniature Game. The open concrete look works as a neutral base for modular terrain, so you can reuse it across sci-fi and modern settings.
  • Mats by Mars: Crime Alley (Circle) Tabletop Wargaming Play Mat: Crime Alley (Circle) is set in the dangerous streets of Gothropolis and lists available sizes including 90cm x 90cm, 36”x36”, 48”x48”, 36" x 72", 48”x72”, 44"x30", and 44"x60". The confirmed size range makes it easier to match a large or unusual table without guessing.
  • Mats by Mars: Quinfinity Citrine Tabletop Wargaming Play Mat: Quinfinity Citrine is a yellow quintuplet city design that also fits the Infinity Sci-fi Miniature Game and lets you build your city, a factory, or an army. If you want an urban mat but prefer a brighter color scheme, this is a direct alternative to the dark concrete look.

Which urban mat should you choose?

Best for

  • Infinity or sci-fi players who want a neutral dark concrete base for modular terrain
  • Gamers who want to build a factory or city block with their own scenery
  • Buyers who want a lower starting price and are willing to check size options on the product page

Not for

  • Players who need a confirmed large size before ordering
  • Groups who want a pre-built superhero street layout with named locations