SEED GAME#2452 BGG all-time

Castellion(2015)

★ 6.9 BGG1–2 playersWeight 2.11
Cooperative GameSolo / Solitaire GameTile Placement

Games like Castellion

Looking for games like Castellion? It's a duel in the truest sense, every decision weighed against a single opponent across the table — built on pulling together against a game that fights back and spatial puzzles that grow as each new piece lands. 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

Curse of the Dark(2022)

★ 8.21–6 playersWeight 2.3
ISO Match
71/100

Shares Cooperative Game + 2 more

Cooperative GameDeductionSolo / Solitaire Game

Urbion (Second Edition)(2024)

★ 7.71–2 playersWeight 1.8
ISO Match
71/100

Shares Cooperative Game + 1 more

Cooperative GameHand ManagementSolo / Solitaire Game

Adventurous(2025)

★ 7.11–4 playersWeight 1.6
ISO Match
70/100

Shares Cooperative Game + 2 more

Cooperative GameSolo / Solitaire GameSquare Grid

The Lord of the Rings: Adventure to Mount Doom(2023)

★ 6.71–4 playersWeight 1.7
ISO Match
70/100

Shares Cooperative Game + 1 more

Cooperative GameDice RollingSolo / Solitaire Game

EXIT: The Game – The Professor's Last Riddle(2022)

★ 7.61–4 playersWeight 2.4
ISO Match
70/100

Shares Cooperative Game + 1 more

Cooperative GameDeductionSolo / Solitaire Game

Blackbrim: 1876(2020)

★ 7.41–6 players120 minWeight 2.5
ISO Match
70/100

Shares Cooperative Game + 1 more

Cooperative GameSolo / Solitaire Game

Niwashi(2024)

★ 7.22 players20 minWeight 1.7
ISO Match
70/100

Shares Cooperative Game + 1 more

Communication LimitsCooperative GameTile Placement

Ministry of Lost Things: Case 1 – Lint Condition(2025)

★ 7.91–4 playersWeight 2.5
ISO Match
69/100

Shares Cooperative Game + 1 more

Cooperative GameDeductionSolo / Solitaire Game

Goblivion(2018)

★ 7.61–2 playersWeight 2.3
ISO Match
69/100

Shares Cooperative Game + 1 more

Cooperative GameDeck, Bag, and Pool BuildingSolo / Solitaire Game

Valpiedra: Descensus ad tenebras(2025)

★ 8.01–4 playersWeight 2.4
ISO Match
69/100

Shares Cooperative Game + 1 more

Cooperative GameDice RollingSolo / Solitaire Game

Escape Tales: The Awakening(2018)

★ 7.01–4 players180 minWeight 2.1
ISO Match
69/100

Shares Cooperative Game + 1 more

Cooperative GameDeductionSolo / Solitaire Game

Unlock!: Short Adventures – Inside the Mind of Sherlock Holmes(2024)

★ 7.11–6 playersWeight 2.4
ISO Match
69/100

Shares Cooperative Game + 1 more

Cooperative GameReal-TimeSolo / Solitaire Game

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