Deck Building vs Bag Building: Two Mechanisms, One Concept

Short answer: Dominion (Second Edition) wins for most people.

Dominion Second Edition ($35) is the best deck-building game and the right starting point for understanding this mechanic because it distills the concept to its purest form: buy cards, build your deck, cycle your engine, and outpace opponents through smart curation rather than lucky draws. For bag building, Quacks of Quedlinburg ($40) is the best entry point -- same concept, but pulling tokens from a bag adds a delightful push-your-luck element that cards lack.

Both mechanisms share a satisfying arc: start weak, make smart purchases, watch your engine improve, and ride the escalating power curve to victory. Central to both is the strategic choice — curation vs. Accumulation.

If this mechanic clicks with your group: What's Engine Building? Board Game Mechanics Explained, Best Deck-Building Games: 10 Games Where You Build Your Deck as You Play, and What's Worker Placement? A Beginner's Guide to the Mechanic.

Deck Building

How It Works

Starting with a small deck of weak cards (10), you'll draw a hand (5) on your turn, play those cards for resources or effects, buy new cards from a shared market, and discard everything. When your deck runs out, shuffle your discard pile to form a new deck — and now your purchased cards are in the mix. This was a lesson I learned after one too many game nights where the 'best' game killed the energy.

Here's the key insight: what you don't buy matters as much as what you buy. A lean deck of 15 powerful cards cycles faster and draws better hands than a bloated deck of 25 mediocre cards. Pruning (removing weak starting cards) is as important as purchasing.

The Best Deck Builders

Dominion — This game invented the mechanism in 2008. Pure deck building with 500+ kingdom cards across expansions. Replayability is infinite. Still the cleanest implementation of the concept.