Search the exact box
Start typing the product title, then choose the correct year and catalog record instead of relying on a fuzzy guess.
TableTopFitOpen the appBoard game expansion checker
Know whether an expansion needs the base game.
Search the exact product before you buy. TableTopFit identifies whether it is a base game, expansion, or accessory, shows a confirmed required base game when the catalog has one, and can compare that requirement with your collection.
Free during open beta. Your personal collection and preferences are private by default.Expansion checker
Is this expansion playable on its own?
Search the exact title to identify its product type, required base game, and collection compatibility.
Choose the exact edition or expansion from the results. TableTopFit will not guess when the catalog relationship is incomplete.
Want to know whether you already own the required base game?Compare with my collection
A shorter path to the table
How it works
Check what it requires
See whether the product is a base game, an accessory, or an expansion linked to another game.
Compare it with your shelf
Sign in to confirm whether the required base game appears in your owned collection before you purchase the expansion.
Built for real collections
Useful context without an unexplained score
Avoid an unplayable purchase
A clear missing-base warning helps prevent an expansion from arriving without the game it needs.
Handle standalone products carefully
The checker uses the exact catalog record and does not assume every product with “expansion” in its name works the same way.
Distinguish accessories from games
Accessories and unconfirmed records receive explicit review guidance instead of being presented as playable standalone games.
Scale up to an entire cart
When you have several products to review, Cart Check adds the same missing-base context to a pasted retailer cart or wishlist.
Common questions
What the checker can tell you
Does every board game expansion require the base game?
No. Some products are standalone expansions, while others require a specific base game or edition. Search the exact box so TableTopFit can use the catalog relationship instead of guessing from the title.
Can this check whether I own the required base game?
Yes. The signed-in checker compares a confirmed expansion relationship with the base games in your TableTopFit collection.
What if the catalog does not list a required base game?
TableTopFit marks the result for review rather than claiming it is standalone. The box and publisher description remain the final authority when catalog data is incomplete.
Can I check an entire cart for expansions?
Yes. Cart Check parses a retailer cart, sale list, or wishlist and flags missing base games alongside duplicates, ownership, and personal fit guidance.
Open beta
Check the expansion before it reaches your shelf.
The public checker handles a single product. Join the free beta to compare required base games with your saved collection and use Cart Check for larger purchase lists.