From Dota 2 Wiki
Main Article: Runes#List
- The first spawned runes grant 40 gold to each player of the team that picks them up.
- The gold value of these runes does not scale like the value of the following spawns.
- All following Bounty Runes grant 60 gold + 4 per minute to the player that picks them up.
- The extra gold bonus increases by 1 every 15 seconds.
- An over-head text shows how much gold was given exactly. This number is not visible to enemies.
- When bottling a Bounty Rune, it grants gold based on the time at which it gets activated, not bottled.