Single-player games like Sunder Siege
Below are 9 single-player Steam games similar to Sunder Siege, 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 Sunder Siege page.
Ranked picks
- 1
Fleshborn
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Simulation with Sunder Siege.
A short incremental game where you are tasked to clean a lab from fleshy growths using your flamethrower. Collect resources and spend them in a vast upgrade tree to unlock new abilities.
- 2
Bouncy Weapons
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Casual with Sunder Siege.
An incremental game where weapons bounce around killing enemies for you. Collect loot, master a massive skill tree, and uncover tons of content.
- 3
Smashing Bottles
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
Smashing Bottles is a short and satisfying incremental game where you break bottles to earn money, upgrade your bat, discover new bottles, and cause chaos! Will you smash enough bottles to buy the universe?
- 4
MiCROBE
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Indie and Casual with Sunder Siege.
A short incremental game where you start as a microscopic organism and grow until you consume entire galaxies. Destroy enemies. Collect Mass. Upgrade 300+ skill nodes. Evolve from a microbe to planetary predator to something far beyond and discover what happens when there's nothing left to consume.
- 5
DO NOT FEED THE VIRUS - Incremental
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
Grow your organism, gather biomass, and expand your colony. A casual, short mouse-driven incremental game focused on growth and progression.
- 6
Dirt Clicker
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
Dirt Clicker is a charming incremental game about digging to the hidden center of the world.
- 7
Loot Loop
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
Build a party of heroes and send them into dungeons in this short incremental RPG. Fight monsters, collect loot, and unlock upgrades. Fast runs, deep skill tree, zero stress.
- 8
Skeleseller
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
You're a skeleton shopkeep who hires adventurers to collect loot for you after your untimely demise. Send adventurers into battle, sell what they find, and build up your town in this laid-back idle game!
- 9
WilderDash
Single-player alternative to Sunder Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Sunder Siege.
A tower defense action-roguelike with online co-op and single-player. Gather resources, build towers, upgrade your auto-attacks, and fend off waves of monsters.