Single-player games like D4 Defence
Below are 10 single-player Steam games similar to D4 Defence, 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 D4 Defence page.
Ranked picks
- 1
Demon Egg
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
The roguelike tower defense card game where one card wins the run: Hatch. Grow your economy to afford it sooner, power up your main spell or overwhelm enemies with a swarm. Shape your build through a randomized skill tree and defend your egg until you can pay the price to hatch.
- 2
Cell Defense
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
Cell Defense is an incremental tower defense set inside the body. One antibody holds the center as endless waves of viruses and bacteria close in. Survive, earn, and spend it on weapons, build-defining cards, and upgrades that keep paying out while you idle.
- 3
Idle Deathworks
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
An idle tower defense roguelite where you summon enemies, harvest their resources, build defenses, and risk increasingly dangerous challenges. When the run ends, resurrect stronger and push farther.
- 4
The First Million
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
An incremental deckbuilder where you constantly unlock new cards and upgrades and discover one game-breaking strategy after another to make THE FIRST MILLION — and then many more!
- 5
Devil Slot Machine
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
On a cursed slot machine, you engage in a deadly game of souls with the demons. Devil Slot Machine is a roguelike pinball tower defense game. Purchase chips as defensive towers and release elemental bullets to destroy your enemies. Enjoy the exhilarating feeling of annihilating demons!
- 6
Chill Wizard
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
A chill incremental game with tower defense vibes where enemies can't harm you! You're a powerful wizard on an epic quest to party! Defeat hordes of joy killers for resources (Moonshine, Tobacco, and more!), construct buildings, call up to 6 friends. Drink A LOT of cocktails to upgrade your skills!
- 7
Botfestation
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
Humanity built a limitless vending machine. Dr. Bio sent his techno-insect army to destroy it. Defend the prototypes in your exoskeleton bot, deploy towers in 1-4 player co-op, and save humanity’s future of free snacks, peace, and suspiciously convenient prosperity.
- 8
Don't Wake the Queen
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
Protect the peaceful sleep of Your Meowness in this ever-growing incremental tower defense. Place defenders, build your own path, unlock new skills and units, infinitely upgrade EVERYTHING and optimize your strategy.
- 9
Mining Survivors
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
Incremental Survivors-like in which you mine valuable resources whilst slaying hoards of enemies.
- 10
Mage Mountain
Single-player alternative to D4 Defence — playable solo, no multiplayer required. Shares Strategy with D4 Defence.
Pick-up-and-play Roguelike Deckbuilder with lots of synergistic depth. Slice through undead foes, and Level-up your 7 Skills to strengthen your cards.