Garry's Mod vs Opus Magnum
Reviews on Steam
Garry's Mod
154.5× more reviews
Critical reception
Opus Magnum
0.5pp gap
Cheaper at launch
Garry's Mod
$10.00 cheaper
Estimated sales (median)
Garry's Mod
120.1× more units (white-box estimate)
More recent
Opus Magnum
11 years apart
Garry's Mod
2006 · Casual
- Reviews
- 1,070,495
- Positive
- 97%
- Launch price
- $9.99
- Engine
- n/a
- Sales (median)
- 74.9M
- Net rev
- $427.6M
Opus Magnum
2017 · Indie
- Reviews
- 6,931
- Positive
- 97%
- Launch price
- $19.99
- Engine
- n/a
- Sales (median)
- 624K
- Net rev
- $7.1M
Tag overlap
30% shared , 6 shared tags, 14 only on Garry's Mod, 9 only on Opus Magnum.
Only Garry's Mod
ModdableMultiplayerPhysicsFunnyFirst-PersonFPSComedyOnline Co-OpCo-opShooterActionPvPRealisticExploration
Shared
SandboxBuildingCasualSingleplayerSimulationIndie
Only Opus Magnum
PuzzleProgrammingAutomationLogicGreat SoundtrackSteampunkDifficult2DHex Grid
Sales estimates
Both estimates use the same vv1.0 multi-factor Boxleiter method. Click "How is this calculated?" on either to see the per-factor breakdown.
Sales estimate
vv1.045.0M to 104.9M
units (median: 74.9M)
≈ $256.6M to $598.6M net revenue (Steam cut + refunds + regional discount applied)
Sales estimate
vv1.0374K to 873K
units (median: 624K)
≈ $4.3M to $10.0M net revenue (Steam cut + refunds + regional discount applied)
How comparison pages work
Verdicts are objective, they call out which game scores higher on a single measurable axis (reviews, price, sales estimate, recency). They don't claim "better." Tag overlap is computed from the public Steam tag list. Sales estimates use a multi-factor Boxleiter method whose formula is shown in full on each game's page.
Want a comparison that doesn't exist? Browse all games,
find two slugs, and concatenate them: /compare/games/<slug-a>/<slug-b>.
Both orderings render the same content; we canonicalise to alphabetical for SEO.