Gizmos 2nd Edition vs Monolyth: Which CMON Puzzle Game Fits?
By Asmodee – Asmodee USA | Published: 2026-11-01
Category: Comparisons
Gizmos 2nd Edition and Monolyth are both CMON engine builders, but they reward different planners. Compare speed, theme, and table fit before you buy.
Quick answer
Choose Gizmos 2nd Edition if you want a fast, chain-building science-fair race where every marble and card combo matters. Choose Monolyth if you prefer a stone-stacking puzzle with prophecy goals and a slower, more deliberate build.
Where the two games diverge
Both are engine building games comparison staples from CMON, but they ask different questions at the table. Gizmos 2nd Edition puts you in a science fair where the goal is to think fast and build machines efficiently; the tension comes from spotting combos before your rivals do. Monolyth casts you as a monolyth builder racing to complete a structure while making prophecies and hitting goals; the tension comes from sequencing your build around those objectives.
That means Gizmos leans toward quick tactical pivots, while Monolyth rewards planning several moves ahead. Neither is strictly heavier on paper from the supplied facts, so use your group's appetite for speed versus deliberation as the deciding factor.
The trade-off: speed versus structure
Gizmos 2nd Edition is built around the science-fair race: only one contestant walks away with the blue ribbon. If your table enjoys fast turns and reactive combo hunting, that race framing is the draw. The trade-off is that players who want a long, quiet planning phase may find the pace too reactive.
Monolyth is framed around building faster than the rest while making prophecies and achieving goals. That gives each turn a clear structural target, which suits planners. The trade-off is that the prophecy-and-goal layer adds bookkeeping that a pure combo race does not have, so players who want minimal overhead may prefer Gizmos.
What the catalog does not tell you
The supplied records list prices and themes but not player counts, playtime, or complexity ratings. Do not assume either game is a certain length or supports a certain group size from this comparison alone. Check the box or product page for those specifications before committing, especially if you regularly play with two players or with younger children.
Decision rules for your table
- If your group loves fast combo turns: Pick Gizmos 2nd Edition. Its science-fair race rewards players who spot and chain machine combos quickly, and the blue-ribbon goal keeps every turn pointed at the same finish line. Choose Gizmos when speed and reactive play are the priority.
- If your group prefers planned builds: Pick Monolyth. The prophecy and goal system gives you a structure to build toward, so players who like mapping out several turns in advance get more traction. Choose Monolyth when deliberate sequencing matters more than speed.
- If you are buying for a mixed group: Start with Gizmos 2nd Edition. The single shared race objective is easier to explain than Monolyth's layered prophecies and goals, so it is the safer first CMON puzzle game for a table with mixed experience. Use Gizmos as the entry point and add Monolyth when your group wants more structure.
Product facts
- Gizmos 2nd Edition: Gizmos 2nd Edition is set at the Great Science Fair, where contestants race to build machines and claim the blue ribbon. The race framing tells you the game rewards quick combo recognition over long-term planning.

Gizmos 2nd Edition - Monolyth: Monolyth asks you to build your structure faster than the rest while making prophecies and achieving goals. The prophecy and goal layer gives planners concrete targets, so turns feel more structured than a pure race.

Monolyth
Which game fits you?
Best for
- Players who enjoy fast, reactive combo building and a clear race to a single prize
- Groups looking for an accessible first CMON puzzle game with a familiar science-fair theme
Not for
- Players who want a slower, goal-driven build with prophecy objectives
- Tables that prefer structured planning over quick tactical pivots

