Gears of War: Judgment players can purchase double XP via microtransactions, VideoGamer.com can confirm.
The temporary experience boost is available to buy through Judgment's in-game store, with packs starting from 80 Microsoft Points (£0.69) right up to 800 Microsoft Points (£6.85).
For 80 MSP, players can purchase a 10 Match Pack of double XP, which provides them with twice as much XP for the following 10 matches.
Alternatively, Microsoft offers a 50 Match Pack for 320 MSP (£2.74), a 100 Match Pack for 560 MSP (£4.80), and a 200 Match Pack for 800 MSP (£6.85).
Players can also opt to pick up the game's VIP Pass for 1600 MSP (£13.71) which, besides other things, grants access to a selection of VIP-only playlists that dish out permanent double XP.
As well as levelling up, XP is used to unlock character and weapon skins, and earn Epic PrizeBoxes: bonus chests containing rare skins.
Level-based achievements also make up for 240Gs worth of the game's overall achievements.
Microtransactions have become popular amongst publishers looking to sell additional content despite facing criticism from some consumers.
EA was criticised for its decision to include microtransactions in Dead Space 3, which lets players buy additional resources to craft new weapons.
Activision also introduced microtransactions to Call of Duty: Black Ops 2 last week.
Microsoft has previously experimented with double XP promotions, too, but up until now has never directly sold it. Last year, specially marked Doritos and Mountain Dew products granted Halo 4 players temporary access to double XP .
Gears of War: Judgment launches on Xbox 360 this Friday, March 22.
Source: Gears of War: Judgment