IMHO.

Single-player games like Underground Defense Force -Sword and Sorcery and Swarm of Insects-

Below are 9 single-player Steam games similar to Underground Defense Force -Sword and Sorcery and Swarm of Insects-, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Underground Defense Force -Sword and Sorcery and Swarm of Insects- page.

Ranked picks

  1. 1
    Students of Psionic Power — Steam game cover

    Students of Psionic Power

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Indie and RPG with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    "Students of Psionic Power" (Original title in Japanese : "心の力の生徒達") is RPG based typing game. You can create your own party members (Can input name, can choose portrait for all of 5 members in ally party). 20 portraits (10 school boys and 10 school girls) are included for character creation.

    2022ActionIndieRPG3.99 USDSingle-playerSimilar games →
  2. 2
    Guild Saga: Vanished Worlds — Steam game cover

    Guild Saga: Vanished Worlds

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and Indie with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    On your maiden voyage with the Heroes Guild, your ship was capsized by an enigmatic maelstrom, stranding your party on Respite Island. Navigate your way through pirates, ferocious beasts, and shady alchemists as you unravel its mysteries.

    2024StrategyIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Those Who Rule — Steam game cover

    Those Who Rule

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and Indie with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    Join three fresh recruits caught in a web of betrayal as war looms over the land. Lead your band of heroes through tactical turn-based battles, master unique abilities, and forge powerful gear to turn the tide of battle. Will you unravel the conspiracy driving the conflict—or be consumed by it?

    2025StrategyIndieRPG17.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    封神榜2022 — Steam game cover

    封神榜2022

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and Indie with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    This game takes Nezha, Xiaolongnv, Yang Jian and Jiang Taigong as the protagonists. It tells the legendary story of the protagonists going to various places to adventure, and finally to Chaoge City to destroy the three demons and defeat King Zhou.

    2022StrategyIndieAdventure9.99 USDSingle-playerSimilar games →
  5. 5
    吞食天地之乱舞三国 — Steam game cover

    吞食天地之乱舞三国

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and Indie with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    This game starts from Yuan Shu's proclaimed emperor,Liu Bei's crusade by imperial decree,participated in Dong Cheng's plan to assassinate Cao Cao on the way.Main chapters:Attack Yuan Shu、war of Guandu、Story of Jingzhou、war of Chibi、Attack the Cities near Jingzhou、capture Sichuan、Attack Wei State.

    2025StrategyIndieAdventure13.99 USDSingle-playerSimilar games →
  6. 6
    Dark Deity — Steam game cover

    Dark Deity

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and Indie with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    Step into the world of Terrazael and lead soon-to-be legendary heroes in a quest to restore a land fractured by broken oaths, reckless wars, and untamed magic. Fight back in turn-based battles, manage character relationships, collect dangerous artifacts, and hopefully restore the world...

    2021StrategyIndieAdventure24.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Crimson Tactics: The Rise of The White Banner — Steam game cover

    Crimson Tactics: The Rise of The White Banner

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Strategy and RPG with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    Crimson Tactics: The Rise of The White Banner brings you an epic adventure in the form of a turn-based tactical RPG. Set in a medieval high fantasy world, witness a massive political disruption through the lives of different characters and fight for the fate of Wendalle.

    2023StrategyRPG29.99 USDSingle-playerSimilar games →
  8. 8
    Labyrinth of Touhou Tri -The Dreaming Girls & The Mysterious Orbs- — Steam game cover

    Labyrinth of Touhou Tri -The Dreaming Girls & The Mysterious Orbs-

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Indie and RPG with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    The girls of Gensokyo weave together a DRPG with not-so-easy boss fights! Form a party of 12 allies out of a pool of 40+, and create with 1000+ skills to choose from! Hack, slash, and grow stronger, then make builds (or counter-builds!) to take down powerful bosses awaiting you in the dungeons!

    2026IndieAdventureRPG19.99 USDSingle-playerSimilar games →
  9. 9
    Students of Light Bonds - Typing RPG with Character Creation - — Steam game cover

    Students of Light Bonds - Typing RPG with Character Creation -

    Single-player alternative to Underground Defense Force -Sword and Sorcery and Swarm of Insects- — playable solo, no multiplayer required. Shares Indie and RPG with Underground Defense Force -Sword and Sorcery and Swarm of Insects-.

    "Thank you!", "Became CEO!", "There is always next chance!" Combined cheerful positive words typing and RPG with character creation system for all party members! English translated texts and romanization examples are available for non-Japanese players. Let's defeat enemies with your own characters!

    2022ActionIndieRPG6.99 USDSingle-playerSimilar games →