Classic Marathon Infinity

Classic Marathon Infinity

13 achievements

Ultra Rare×4

Very Rare×8

Rare×1

About Classic Marathon Infinity's achievements

Classic Marathon Infinity has 13 Steam achievements, 4 of them ultra-rare — unlocked by under 5% of players. The rarest is "Vidmaster", earned by just 3.7% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

3.7%

of players earned "Vidmaster"

🗺️ Community guides & walkthroughs

Community Ratings

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Classic Marathon Infinity achievements

13 achievements

Vidmaster

Complete the Vidmaster Challenge on Total Carnage difficulty

Ultra Rare3.7%

I Totally Know Who You Are

Complete Classic Marathon Infinity on Total Carnage difficulty

Ultra Rare3.9%

More Than One Path

Read all seven Eat the Path terminals in the same playthrough

Ultra Rare4.2%

Monsters In Dreams Assassin

Kill an invisible defender with the SPNKR

Ultra Rare4.6%

Chapel Groan

Fully unblock the upper path before entering it, without using the secret switch

Very Rare5.6%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare5.6%

Film Buff

Pick up a shotgun and SMG on Poor Yorick

Very Rare5.8%

I Know Who You Are

Complete Classic Marathon Infinity

Very Rare8.6%

A Show of Good Faith

Cut power to the containment unit

Very Rare9.0%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare9.1%

My Personal Peon

Open all the airlocks on Naw Man He's Close

Very Rare9.2%

Roadrunner

Cripple the Pfhor warning system

Very Rare10.8%

Meet the New Boss

Read the first terminal in Rise, Robot, Rise

Rare15.2%