16 Sandbox games like Diplomacy is Not an Option that you should try

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Ranking compiled by Lluis Enric Mayans, Founder & Head of ContentUpdated May 19, 2026How this is calculatedOrdered by an attribute-similarity model, not editorial opinion.

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We filtered the 50 games similar to Diplomacy is Not an Option down to the 16 that fit the “Sandbox” category. Castle Story, Craft The World and 7 Days to Die top the list, ranked by affinity and similarity score to Diplomacy is Not an Option.

iRank80/ 100

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GenreStrategySubgenreTower Defense

The best sandbox games like Diplomacy is Not an Option

16 similar games foundUpdated May 2026

Handpicked by our similarity algorithm, these are the titles with the highest gameplay match to Diplomacy is Not an Option. Each one has been evaluated across 19 real attributes — from combat style and progression mechanics to world structure and visual perspective — so every recommendation is based on how the game actually plays, not just its genre label.

#1Castle StoryClosest on genre

iRank63

GenreStrategySubgenreTower Defense

SoloCo-opSandbox WorldHistoricalMedievalBase BuildingIsometric

Steam👍 65%· 11KRAWG👍 59%· 27

Year 2012Dev Sauropod StudioPlaytime ~3hOn PC · iOS · Android

✓ Both are tower defense games — sharing deep simulation, sandbox freedom and real-time strategy

≠ Stands apart with open world exploration, combat magic and multiplayer gameplay, while skipping vibe casual

An epic adventure awaits you in Castle Story, a strategy game where you command friendly creatures called Bricktrons. Have them explore, carve, dig and gather resources from vast, spectacular floating islands, reshaping the voxel-based world to your desire!

Where it drifts furthest from Diplomacy is Not an Option: combat.

On reception: its Steam reviews are mixed, against very positive for Diplomacy is Not an Option.

It predates Diplomacy is Not an Option by 12 years, with what that implies technically.

Genre100Visuals100Setting83World83Game mode78Progression55

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Steam

#2Craft The WorldClosest overall match

iRank83

GenreStrategySubgenreTower Defense

SoloCo-opCasualHardcoreSandbox WorldMedievalBase BuildingManagement

Steam👍 88%· 17KRAWG👍 75%· 157

Year 2014Dev Dekovir EntertainmentPlaytime ~9hOn PC · Apple Macintosh

✓ Fits the tower defense games cluster, with deep simulation, sandbox freedom and adventure storytelling

≠ Its own twist: deep RPG systems, roguelike runs and open world exploration, while skipping real-time strategy

Craft The World is a unique sandbox strategy game, the mix of Dungeon Keeper, Terraria and Dwarf Fortress. Explore a random generated world populated by dangerous creatures, build a dwarf fortress, gather resources, and craft all the items, weapons, and armor you need.

Where it drifts furthest from Diplomacy is Not an Option: visuals and setting.

It predates Diplomacy is Not an Option by 10 years, with what that implies technically.

Genre100Tone80Game mode77Progression61World59Setting42

GenreStrategySubgenreTower Defense

Co-opSoloDarkSandbox WorldHorrorBase Building

Steam👍 87%· 399KRAWG👍 53%· 497IGDB36· 8OC39· 34

Year 2013Dev Telltale GamesPlaytime ~9hOn PC · PS · Xbox

✓ Both are tower defense games — sharing survival mechanics, deep simulation and adventure storytelling

≠ Stands apart with deep RPG systems, shooter and first-person shooting, while skipping real-time strategy

After the nuclear war, people have to survive, and 7 Days to Die gives players the opportunity to experience it. The large parts of the planet are ravaged by destruction, and lone survivors are under the constant threat, even within relatively safe counties, like Navezgane, Nevada.

Where it drifts furthest from Diplomacy is Not an Option: combat and visuals.

It predates Diplomacy is Not an Option by 11 years, with what that implies technically.

Genre100World51Game mode48Tone44Progression40Setting32

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Steam Xbox PS

#4Stronghold CrusaderClosest on world

iRank92

GenreStrategySubgenreTower Defense

SoloTacticalSandbox WorldHistoricalMedievalBase BuildingManagementIsometric

Steam👍 98%· 21KIGDB80· 1

Year 2002Dev Firefly Studios · Take-Two InteractiveOn PC

✓ Both are tower defense games — sharing deep simulation, sandbox freedom and real-time strategy

≠ Its own twist: melee combat, ranged combat and fantasy world, while skipping adventure storytelling

Where it drifts furthest from Diplomacy is Not an Option: game mode.

It predates Diplomacy is Not an Option by 22 years, with what that implies technically.

Genre100World100Progression100Setting80Visuals80Combat74

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Steam

#5Stronghold HD (2012)Closest on combat

iRank88

GenreStrategySubgenreTower Defense

SoloTacticalSandbox WorldMedievalHistoricalBase BuildingManagementIsometric

Steam👍 96%· 10KRAWG👍 82%· 310MC81

Year 2012Dev FireFly StudiosPlaytime ~3hOn PC · Apple Macintosh

✓ Same family of tower defense games: deep simulation, real-time strategy and sandbox freedom

≠ Stands apart with strong narrative focus, open world exploration and fantasy world, while skipping adventure storytelling

Stronghold is a real-time strategy game, the first installment in Firefly Studio’s Stronghold series. Gameplay### The game takes place in Medieval Brittan of XI century.

Where it drifts furthest from Diplomacy is Not an Option: tone and game mode.

It predates Diplomacy is Not an Option by 12 years, with what that implies technically.

Genre100Combat100Progression93World81Setting79Visuals77

GenreStrategySubgenreTower Defense

SoloTacticalSandbox WorldMedievalHistoricalBase BuildingManagementIsometric

Steam👍 96%· 10K

Year 2001Dev Firefly Studios · Take-Two InteractiveOn PC · Mac

✓ Both are tower defense games — sharing deep simulation, real-time strategy and sandbox freedom

≠ Its own twist: strong narrative focus, open world exploration and melee combat, while skipping adventure storytelling

Where it drifts furthest from Diplomacy is Not an Option: tone and game mode.

It predates Diplomacy is Not an Option by 23 years, with what that implies technically.

Genre100Progression93World81Setting79Visuals77Combat69

GenreStrategySubgenreTower Defense

SoloCasualSandbox WorldBase BuildingManagementIsometric

Steam👍 78%· 1.1KRAWG👍 18%· 56

Year 2011Dev Power of 2 · Tripwire InteractivePlaytime ~1hOn PC · Apple Macintosh · Linux

✓ Fits the tower defense games cluster, with tower defense planning, deep simulation and sandbox freedom

≠ Stands apart with precision platforming, strong narrative focus and open world exploration, while skipping real-time strategy

Dwarfs!? is a two-dimensional RTS developed by Power Of Two. ###Gameplay The players control a mining colony of dwarves, who dig for treasures. The players have to mine the resources and to protect the colony from environmental hazards, such as water and lava and different enemies.

Where it drifts furthest from Diplomacy is Not an Option: setting and visuals.

On reception: its Steam reviews are mostly positive, against very positive for Diplomacy is Not an Option.

It predates Diplomacy is Not an Option by 13 years, with what that implies technically.

Genre100Progression100Game mode52World48Tone45Visuals29

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Steam

#8Gratuitous Space Battles

iRank58

GenreStrategySubgenreTower Defense

SoloTacticalHardcoreSandbox WorldIsometric

Steam👍 70%· 877RAWG👍 24%· 42MC72IGDB65· 2

Year 2009Dev Positech GamesPlaytime ~3hOn PC · Apple Macintosh · Linux

✓ Same family of tower defense games: deep simulation, real-time strategy and sandbox freedom

≠ Stands apart with turn-based strategy, melee combat and setting scifi, while skipping adventure storytelling

Gratuitous Space Battles is a mix of real-time strategy and tactics of Tower Defense, altogether featuring a science-fiction setting of space warfare.

Where it drifts furthest from Diplomacy is Not an Option: setting and game mode.

On reception: its Steam reviews are mostly positive, against very positive for Diplomacy is Not an Option.

It predates Diplomacy is Not an Option by 15 years, with what that implies technically.

Genre100World100Combat83Tone48Visuals43Game mode36

GenreStrategySubgenreTower Defense

SoloSandbox WorldBase BuildingManagementProcedural

Steam👍 88%· 7.7KRAWG👍 68%· 40

Year 2019Dev Raymond Doerr · SixtyGig GamesPlaytime ~3hOn PC · Apple Macintosh · Linux

✓ Both are tower defense games — sharing tower defense planning, deep simulation and survival mechanics

≠ Its own twist: roguelike runs, procedural generation and fantasy world, while skipping real-time strategy

Follow Development About the Game Rise to Ruins is at heart a godlike village simulator, but it also throws in plenty of familiar game play mechanics from classic 90s era real-time strategy games like Warcraft, along with some tower defense and survival elements in an attempt to create a new kind…

Where it drifts furthest from Diplomacy is Not an Option: setting and visuals.

Genre100Progression100World83Game mode52Setting0Visuals0

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Steam GOG

#10Plague Inc: Evolved

iRank87

GenreStrategySubgenreRTS

SoloCo-opTacticalCasualDarkSandbox WorldHorrorIsometric

Steam👍 94%· 62KRAWG👍 86%· 667MC80IGDB80· 3

Year 2015Dev Ndemic CreationsPlaytime ~5hOn PC · PS · Xbox

✓ If you enjoyed Diplomacy is Not an Option, expect real-time strategy, deep simulation and survival mechanics

≠ Where it differs: brings post-apocalyptic world and multiplayer gameplay, while skipping adventure storytelling

Plague Inc: Evolved is a biological simulation/strategy game developed by Ndemic Creations. In Plague Inc: Evolved the player controls a disease, that infects patient zero in a selected country.

Where it drifts furthest from Diplomacy is Not an Option: setting.

It predates Diplomacy is Not an Option by 9 years, with what that implies technically.

Combat100World100Visuals100Game mode77Tone75Genre50

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Steam Xbox PS

#11Stronghold Legends: Steam EditionClosest on setting

iRank83

GenreStrategySubgenreTower Defense

Sandbox WorldMedievalHistoricalBase BuildingManagementIsometric

Steam👍 86%· 10KRAWG👍 79%· 23

Year 2023Dev FireFly StudiosPlaytime ~4hOn PC

✓ Both are tower defense games — sharing deep simulation, sandbox freedom and real-time strategy

≠ Stands apart with strong narrative focus, open world exploration and multiplayer gameplay, while skipping adventure storytelling

Relive the glory of Stronghold, the original BAFTA-nominated real-time strategy game, with this new definitive edition of the classic 'castle sim'.

Where it drifts furthest from Diplomacy is Not an Option: game mode and tone.

Genre100Progression91Setting86World74Visuals70Game mode0

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Steam

#12Bloons TD 6

iRank91

GenreStrategySubgenreTower Defense

SoloCo-opTacticalCasualHardcoreSandbox WorldManagementIsometric

Steam👍 97%· 386KRAWG👍 81%· 208

Year 2018Dev Ninja KiwiPlaytime ~8hOn PC · iOS · Android

✓ Fits the tower defense games cluster, with tower defense planning, sandbox freedom and survival mechanics

≠ Stands apart with cozy, relaxing feel, combat magic and ranged combat, while skipping deep simulation

The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available.

Genre100World100Tone73Visuals64Combat62Game mode59

1/1 agree it's a good matchDetails →

Steam Epic itch.io

#13Atom Zombie Smasher

iRank70

GenreStrategySubgenreTower Defense

SoloCo-opTacticalDarkCasualSandbox WorldHorrorIsometric

Steam👍 90%· 2.1KRAWG👍 36%· 101MC75

Year 2011Dev Blendo GamesPlaytime ~1hOn PC · Apple Macintosh · Linux

✓ Both are tower defense games — sharing tower defense planning, sandbox freedom and real-time strategy

≠ Where it differs: brings procedural generation, melee combat and post-apocalyptic world, while skipping deep simulation

The game is a real-time strategy from the independent studio Blendo Games. The main task is to save as many people as possible from the advancing horde of zombies.

Where it drifts furthest from Diplomacy is Not an Option: setting.

It predates Diplomacy is Not an Option by 13 years, with what that implies technically.

Genre100Combat78Tone73Game mode59World57Visuals51

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Steam

#14Bloons TD 5

iRank95

GenreStrategySubgenreTower Defense

SoloCo-opTacticalCasualSandbox WorldIsometric

Steam👍 95%· 12K

Year 2011Dev Ninja KiwiOn PS4 · Android · PC

✓ Both are tower defense games — sharing tower defense planning, deep simulation and sandbox freedom

≠ Where it differs: brings melee combat, multiplayer gameplay and online features, while skipping real-time strategy

Where it drifts furthest from Diplomacy is Not an Option: tone.

It predates Diplomacy is Not an Option by 13 years, with what that implies technically.

Genre100World100Visuals88Combat85Game mode69Tone45

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Steam PS Nintendo

#15Europa Universalis IV

iRank86

GenreStrategySubgenreRTS

SoloCo-opTacticalSandbox WorldHistoricalMedievalManagementIsometric

Steam👍 88%· 136KRAWG👍 83%· 396MC87IGDB85· 2

Year 2013Dev Paradox Development Studio · Paradox InteractivePlaytime ~6hOn PC · Apple Macintosh · Linux

✓ If you enjoyed Diplomacy is Not an Option, expect real-time strategy, deep simulation and sandbox freedom

≠ Where it differs: brings turn-based strategy, open world exploration and fantasy world, while skipping adventure storytelling

Europa Universalis IV is a global strategy game developed by Paradox Interactive. It is the fifth game in the series, not counting the add-ons. ###Gameplay The game can take place at any time starting from the late Middle Age to the Napolean Wars era.

It predates Diplomacy is Not an Option by 11 years, with what that implies technically.

Combat100Visuals100Game mode78Setting77World70Progression68

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Steam GOG Epic

Complete list of sandbox games like Diplomacy is Not an Option

The full catalog of games sharing gameplay DNA with Diplomacy is Not an Option, ordered from highest to lowest similarity score. Use the filters above to narrow down by genre, setting or game mode and find the alternative that best fits your playstyle.

Stronghold 3 Gold

RTS · Simulation

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Rankings in the same genre

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