SEED GAME#10497 BGG all-time

Ostium(2021)

★ 7.1 BGG1–3 playersWeight 2.75
Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Games like Ostium

Looking for games like Ostium? It's a strategy game with real decisions on every turn — built on building an engine card by card as the game unfolds and the squeeze of wringing the most out of a limited hand. This page rounds up 12 of the closest alternatives, scored on mechanical overlap with the original (45%), complexity match (35%), and player-count fit (20%), then weighted by BoardGameGeek community ratings so every pick is one players genuinely rate. The strongest matches come first; the further down you go, the more a game trades exact overlap for a fresh take on the same core appeal.

How ISO scores this list:Mechanic overlap 45%·Complexity proximity 35%·Player-count fit 20%·BGG quality multiplier applied

12 recommendations · scored by ISO

Dominion(2008)

★ 7.62–4 players30 minWeight 2.3
ISO Match
79/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Thunderstone(2009)

★ 6.91–5 players60 minWeight 2.5
ISO Match
76/100

Shares Deck, Bag, and Pool Building + 3 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Nightfall(2011)

★ 6.52–5 playersWeight 2.6
ISO Match
74/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Shards of Infinity(2018)

★ 7.42–4 players30 minWeight 2.1
ISO Match
74/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Dominion: Intrigue(2009)

★ 7.72–6 players30 minWeight 2.4
ISO Match
73/100

Shares Deck, Bag, and Pool Building + 3 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Dominion: Second Edition(2016)

★ 7.82–4 players30 minWeight 2.2
ISO Match
73/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Volfyirion(2019)

★ 7.21–2 playersWeight 2.3
ISO Match
72/100

Shares Deck, Bag, and Pool Building + 3 more

Deck, Bag, and Pool BuildingHand ManagementOpen Drafting

Star Realms: Colony Wars(2015)

★ 7.82 players20 minWeight 1.9
ISO Match
72/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingDelayed PurchaseHand Management

Baseball Highlights: 2045(2015)

★ 7.51–4 players45 minWeight 2.2
ISO Match
71/100

Shares Deck, Bag, and Pool Building + 4 more

Deck, Bag, and Pool BuildingHand ManagementOpen Drafting

Witchcraft!(2023)

★ 7.61 players20 minWeight 2.5
ISO Match
71/100

Shares Deck, Bag, and Pool Building + 3 more

Card Play Conflict ResolutionDeck, Bag, and Pool BuildingHand Management

Battle for Sularia(2016)

★ 6.82 players30 minWeight 3.3
ISO Match
70/100

Shares Deck, Bag, and Pool Building + 3 more

Deck, Bag, and Pool BuildingHand ManagementOpen Drafting

Undaunted 2200: Callisto(2024)

★ 7.71–4 playersWeight 2.8
ISO Match
70/100

Shares Deck, Bag, and Pool Building + 3 more

Deck, Bag, and Pool BuildingDice RollingHand Management

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