Tiled

Tiled is an editor for cards of games that work with tiles. You use a tile set as a collection of building blocks and thus, for example, create a playing field, landscape or interior. Layers help separate your background, decoration and other parts.

You can link properties to maps, layers, tiles and objects. This way you capture information that your game can read later, such as a type of area or its own object characteristic. The TMX format is part of that workflow. Please check that the game engine you use supports your card format and properties.

Tiled doesn't set all the rules himself. You create the card and associated data; for movement, fights or a complete playable game you also need an engine or own code. So start with a small card that you can load directly into your game before working out a big world.