SessionPick
Mistake of Pythagoras

koumei_s · 2005

Mistake of Pythagoras

Session Respect Score

AI estimate · 0/5 votes
0.0/ 10

"A Half-Life 2 mod offering single-player shooter action with a sci-fi narrative about interdimensional catastrophe."

Heads up: As a mod rather than standalone game, installation and compatibility may require additional setup time; playtime varies significantly depending on player skill and mod length.
Best session: 20-45 minutes

Minimum session

15 min

Pausability

At save points

Resume friendliness

Some reorientation

FOMO pressure

Zero FOMO

Focus required

Moderate

Session structure

Story chapters

Play in focused chunks between save points to avoid losing progress in this linear mod experience.

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Mod
Part of Half-Life 2

About

Mistake of Pythagoras is a modification for Half-Life 2, developed by Koumei Satou. Something goes mad because the human race failed in the experiment, and it connects with another world. The resident in the another world is crazy due to the mistake. We should restore the situation.

You are Gordon in a parallel world and the city is under attack from unknown enemies. You have to find out a way to stop the invasion by traveling into their world and correcting the “mistake.”

Single playerFirst personActionScience fiction

Media

Community Tips

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Community Session Data

No sessions logged yet —

Context Tags

No sound needed? One-handed? Good for commutes? Players vote.

🔇No sound OK
🤚One-handed
🎵Background game
🚇Commute friendly
✈️Plane friendly
💤Suspend & resume
Quick to boot
☁️Cloud save
👶Kid can watch
🛋️Couch co-op
🎤No voice chat needed
🌙Solo after bedtime
🎙️Podcast game
🧘Zen mode
🥱Brain off
🔁Satisfying grind
🧒Kid co-op

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Platform Notes

Does it actually work well on your platform? Community tested.

Suspend/resume works
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Load times are fast
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Performance is stable
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Cloud saves work
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Plays offline
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Full controller support
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Mistake of Pythagoras — Session FAQ

How long does a session of Mistake of Pythagoras take?
The minimum meaningful session for Mistake of Pythagoras is approximately 15 minutes. This is the shortest play window where you can make real progress or have a satisfying experience, based on community data.
Can you pause Mistake of Pythagoras?
Mistake of Pythagoras uses save points or manual saves. You'll need to reach a checkpoint before exiting to avoid losing progress — factor this into your session planning.
Does Mistake of Pythagoras pressure you to keep playing?
Mistake of Pythagoras has no FOMO mechanics — no timed events, live content, or narrative cliffhangers. You can stop whenever you want without feeling like you're missing out.
What is Mistake of Pythagoras's Session Respect Score?
Mistake of Pythagoras has a Session Respect Score of 7.7/10. This score combines minimum session length, pausability, FOMO level, and pickup friendliness into a single metric for how well the game fits busy schedules.

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