How many games should you finish before buying more?

The honest answer is a ratio, not a number: finish (or consciously drop) two games for every one you buy until your unplayed share is under half. Absolute rules like "clear the backlog first" sound disciplined and fail within one Steam sale.

Why "finish everything first" never works

The average Steam library is more than half unplayed. If you own 200 games and play eight hours a week, "finish everything first" is a multi-year moratorium — a rule nobody keeps, and abandoning it usually triggers a guilt-purchase spree. Rules survive only when they bend without breaking.

The 2-for-1 rule

Before buying a game, name two library resolutions since your last purchase: a game you finished, or a game you honestly marked abandoned. Dropping a game you know you'll never launch counts on purpose — completion rate improves both by finishing and by telling the truth. The rule keeps the library shrinking while still letting you buy the release you actually care about.

Know your real completion rate

Completion rate = games you finished ÷ games you started. Most players guess theirs high. Two library facts expose it: how many games sit between 1 and 10 hours (tried and dropped), and how many are at 0 hours (never tried). If your tried-and-dropped pile is bigger than your finished pile, the problem is picking, not buying — a session-fit and rating-based ranking fixes more than a purchase freeze does.

Make the next pick cheap

The finish-vs-buy dilemma is really a friction dilemma: buying is one click, while choosing from 200 owned games is a scroll session. Lower that friction — a deterministic backlog ranking, a free unplayed-percentage check, or one nightly pick — and owned games start winning by default.