Single-player games like VIEWPORT: The A.R.K. Protocol
Below are 11 single-player Steam games similar to VIEWPORT: The A.R.K. Protocol, 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 VIEWPORT: The A.R.K. Protocol page.
Ranked picks
- 1
Kingdom Isles
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy and Simulation with VIEWPORT: The A.R.K. Protocol.
Build a mighty kingdom, trade resources on the market, and defend your land against Viking raiders! In this strategic city builder, each run presents its own unique challenges. Plan ahead, balance interests, and make difficult choices to stay on the throne.
- 2
Apotheosis Engine
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Action and Strategy with VIEWPORT: The A.R.K. Protocol.
An accident causes a lost space probe to become self aware. "Apotheosis engine" is a lore-rich incremental game. Grow from a piece of engineering into a galactic superdeity by navigating an alien OS.
- 3
Praetor: Medieval TD
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Action and Strategy with VIEWPORT: The A.R.K. Protocol.
A medieval tower defense game where you build and defend your village against relentless enemy raids. Gather resources, construct and combine powerful defenses, recruit troops, and upgrade your forces to protect your kingdom and survive the siege.
- 4
Dungeon Dominator
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy and Simulation with VIEWPORT: The A.R.K. Protocol.
Build and expand your own warm, cozy dungeon where your minions live miserable lives and do their evil things. Take part in thrilling battles against humans, angels, and powerful bosses, defending your domain. Conquer the world by commanding an army with a wave of your hand!
- 5
Irondrive
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy and Simulation with VIEWPORT: The A.R.K. Protocol.
Your base is on the move. Your crew is at the breaking point. Manage priorities, automate repairs, and keep everyone alive as your fortress crosses a hostile wasteland. Survive the attacks. Adapt to the chaos. Keep moving.
- 6
Three Kingdoms Club Manager
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy and Simulation with VIEWPORT: The A.R.K. Protocol.
This is a tactical roguelike with grid battles. Recruit heroes, collect gear and passives to build teams. The roguelike mode has Slay the Spire-style maps, 6 classes with unique difficulties. Shop pulls items and rare upgrades. League mode offers 18 factions with football-style ranks.
- 7
Ants Times Infinity
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy with VIEWPORT: The A.R.K. Protocol.
Craft your nest underground, finding powerful combinations of chambers and pheromones to build the perfect ant-spawning engine. Then unleash them in their thousands onto the surface, directing workers to fuel the swarm while soldiers and champions push out to conquer enemy territories.
- 8
Elon Simulator - Spend Like A Trillionaire
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Action and Strategy with VIEWPORT: The A.R.K. Protocol.
Elon Simulator is an immersive Trillionaire Simulator with TONS of fun mechanics and activities. As Elon, you can: Smoke Weed (a lot), Print your own Money, Sell Lithium to Earth for BILLIONS, Make MILLIONS while you sleep in real life, Become a Trillionaire, and TONS more! Made by one dude.
- 9
XO-Planets
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Action with VIEWPORT: The A.R.K. Protocol.
An old-school, frantic roguelike action platformer with tower defense gameplay and light RPG elements.
- 10
Politiks - Satirical Roguelite Deckbuilder
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Strategy and Simulation with VIEWPORT: The A.R.K. Protocol.
Become a corrupt politician in this satirical deck-builder where you manipulate voters, sabotage rivals, and pocket campaign funds to win at any cost. Debates with rock-paper-scissors, deliver speeches by spinning roulette, and handle budgeting by ignoring the people's needs.
- 11
Void Salvage
Single-player alternative to VIEWPORT: The A.R.K. Protocol — playable solo, no multiplayer required. Shares Action and Strategy with VIEWPORT: The A.R.K. Protocol.
Salvage derelicts, fight off bad guys, upgrade your ship, and make good or bad choices. The game starts difficult, but eventually you'll be able to sit back and watch your ship destroy everything.