Bungie’s third closed playtest for Marathon just wrapped, and despite strict NDAs, the floodgates cracked open anyway. A well-known leaker spilled details from Playtest 3, including a new Runner named Icon, redesigned faction UIs, and the first playable maps set aboard the Marathon ship itself.

Marathon’s New Runner “Icon” brings high-mobility, high-reward gameplay

Codenamed “Thief” in earlier builds, the now-confirmed Runner Icon looks built for players who like speed, vision, and disruption. According to the leak, Icon has three unique abilities that mix utility and thievery:

• Grapple: Like Pathfinder from Apex Legends, used for fast traversal
• X-Ray Vision: Highlights loot containers through walls and reveals enemy silhouettes briefly, even through smoke
• Loot-Stealing Drone: Yanks the rarest item from an enemy’s inventory and drops it as a loot bag nearby (manual pickup required)

If these abilities make it to launch unchanged, Icon might become a go-to for aggressive solo players and precision looters.

Multiple Marathon ship maps are now confirmed

Playtest 3 added new maps to the rotation, including one major first: a playable location set on the UESC Marathon ship. Titled Cryo Archive, this map featured puzzle-driven mechanics like key-based access points, unfinished environmental art, and dangerous “spark rain” hazards that ramp up heat buildup.

Another map, Outpost, returned with updated visuals and a new damage-over-time environmental hazard, proving that Bungie is starting to flex dynamic map design during testing.

Faction systems get a full UI overhaul

The test also showcased a total revamp of the game’s six factions: Cyberacme, Nucaloric, Traxus, MIDA, Arachne, and Sekiguchi. Each now features:

• Full cinematic intros lasting over 30 seconds
• Brand-new advisor visuals
• Contract interactions that reflect current test systems

Players could align with any faction during the session, though cosmetics from previous tests were removed in this build, possibly signaling a reset ahead of more polished future playtests.

Other leaks and system changes

The thread from leaker Deakstiny also highlighted other smaller, but telling, updates:

• All cosmetics are disabled for this test
• Silkworms (yes, the pink cat mascots) are reportedly in-game
• Environmental aesthetics still need polishing on Cryo Archive
• No S’pht Compilers spotted, but data miners say they’re in the files

Bungie is paying testers for long-term feedback

Alongside Playtest 3, Bungie launched a 30-day remote test beginning September 8, rewarding full-session testers with a $500 gift card. It’s part of an ongoing push to tune Marathon through live feedback, as Bungie continues work following the game’s delay past its original September 2025 target.

If this leak holds, Marathon is shaping up to be more than a nostalgia-driven reboot; it’s a PvP extraction shooter with layered systems, fluid mobility, and Bungie’s signature knack for fine-tuned sandbox gameplay. Just don’t blink, or you might miss the next leak.