Single-player games like UNDER DEFEAT
Below are 18 single-player Steam games similar to UNDER DEFEAT, 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 UNDER DEFEAT page.
Ranked picks
- 1
Astro Fighters
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Astro Fighters is a tough old school vertical scrolling bullet hell shooter designed to test your skills with non-stop arcade style action. Fight against large bosses at the end of every level and compete for the high score across 4 difficulty modes to be the best fighter pilot in the game.
- 2
Eagles of World War 2
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
A fantasy based arcade shooter set in World War 2 with frantic bullet hell shooter style gameplay and a bullet time slo motion mechanic. Take on the enemy forces solo or with a friend either in local co-op or online with STEAM's remote play together.
- 3
Muchi Muchi Pork! & PinkSweets Boosted
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Hardcore yet cute Danmaku shooting makes a grand comeback!
- 4
Rising Sun - Iron Aces
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
The Valkirias are here. Fast paced action Shoot 'em up with beautifully rendered 3D graphics. Select between four characters with different abilities and follow their story. Upgrade and unlock fighters, battle bosses and play amazing special stages, solo or with a friend.
- 5
Thunder Wolves
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
When this “wolf pack” strikes, you hear the thunder roll. The Thunder Wolves attack from the air. They are mercenaries, and the best helicopter pilots in the world. Every one of them is ready for action at all times—and ready to fight evil, wherever it lurks.
- 6
Assault Android Cactus+
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.
- 7
Twin Hawk
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Take on powerful tanks and battleships with the best use of your fighter in this military themed vertical arcade shoot ‘em up by Toaplan! Summon friendly fighter planes to avoid emergencies and increase firepower. Now on PC with modern enhancements!
- 8
Gunslugs
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Lock and load for chaotic, fast-paced action in Gunslugs! Battle the evil Black Duck Army across wild, procedurally generated levels packed with explosions, jetpacks, chicken guns, and rogue-like permadeath. Unlock heroes, conquer bizarre worlds, and fight your way to the gates of Hell!
- 9
Strania - The Stella Machina -
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Japanese boutique game studio G.rev makes its long-awaited debut on Steam with Strania!
- 10
Border Town
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Restore the former glory of Border Town in an open-world sandbox RPG set in a fantastical realm. Explore the world, craft tools and weapons, cultivate fields, and socialise with your neighbours while dealing with dark forces that threaten to destroy everything you have built.
- 11
Raiden III x MIKADO MANIAX
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Soar sky-high in Raiden III x MIKADO MANIAX, an electrifying entry in the classic arcade shoot-‘em-up series! Customize your music, wallpapers, game mode, and more before launching into high-octane aerial action!
- 12
STRIKERS 1945
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
The vertical scrolling shooter game released in the arcade by "Psikyo". You can set the difficulty level, controls, screen orientation, etc. In addition, online rankings have been implemented! Aim to be the world's best Striker!
- 13
STRIKERS 1945 II
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Easy to play, hard to master. This is one of the most iconic arcade shooter of the 90s, released by Psikyo. It comes back with many customizable options and online rankings!
- 14
TENGAI
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Miko-san and ninja girl blast away! The best of eccentric Japanese-style shooter is here! With online rankings!
- 15
STRIKERS 1945 III
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Here's a challenge from 90's arcades! The ultimate Psikyo shooter! With online rankings.
- 16
Psyvariar Delta
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Thrive on Danger: Master the 'Buzz' to transform peril into pure power. Graze the edge of destruction to fuel your evolution. Harness the fleeting invincibility of each level-up to dive even deeper into the barrage.
- 17
Ninja JaJaMaru: The Great Yokai Battle + Hell
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
"Ninja JaJaMaru : The Great Yokai Battle + Hell" est un jeu d'action en 2D. Il s'agit de la dernière interaction de la série Ninja JaJaMaru qui introduit de nouveaux contrôles et de nouvelles mécaniques de jeu dans la série.
- 18
GUNBIRD
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
"Marion" the little great wizard in the steampunk world. The masterpiece of the "Psikyo Shooting"! Online rankings are available.