advmarkers
Luke

Allows you to create and manage markers/waypoints.

Discovery Maps
TomCon

A comprehensive mapping system that creates a fullscreen map as you explore. Features a interactive map with zoom controls, personal markers, waypoints, and multiplayer map party.

Pos Marker
1F616EMO

Add markers that can set and get via chatcommand.

Breadcrumbs
FaceDeer

Path marker signs for use when exploring a twisty maze of passages that are all alike.

HL Marker
Flay Krunegan

Teleportation Marker is a unique item that allows players to set and execute teleportation to marked positions with customizable delay times.

Nameznik
MatyasP

Námezník / Fouling point marker, place where ends wide between tracks enough. For first, czech design.

Guider
1F616EMO

HUD markers for navigation

Markers
Sokomine

Easy interface (GUI) for the areas/advanced_areas protection mod