Outpost: Infinity Siege similar games & best alternatives

Why it matches

• Both are driven by steady progression Strong progression system with weapon and stratagem unlocks and upgrades tied to mission success.
• Both are violent Core gameplay involves combat, destruction, and use of heavy weaponry and vehicles.
• Both reward thinking ahead Requires tactical planning, team coordination, and strategic use of equipment and positioning.

Why it matches

• Both are driven by steady progression Strong emphasis on accumulating gear, upgrades, and mutations to enhance power.
• Both leave room to create Extensive customization of arsenals, decals, and character appearance allows for creative self-expression.
• Both let you chart your own course Players have freedom to customize their arsenals and choose how to approach missions in an open world.

Why it matches

• Both are violent Combat involves shooting and destroying alien enemies with guns and traps.
• Both are driven by steady progression Strong meta-progression with unlocking and upgrading weapons, traps, and gear across runs.
• Both are about getting better Players develop skills in FPS combat, strategic planning, and resource management with progression through unlocks.

Why it matches

• Both are violent Core gameplay revolves around combat, shooting, and destruction of enemies.
• Both are driven by steady progression Strong meta-progression with permanent upgrades, loot collection, and build advancement driving motivation.
• Both are built to keep you coming back High replayability with addictive progression loops, encouraging many hours of habitual play and repeated runs.

Why it matches

• Both are driven by steady progression Clear progression through acquiring resources, upgrading train, crafting better gear, and unlocking new abilities.
• Both reward thinking ahead Players must plan resource use, train movement, crafting, and combat tactics; strategic thinking is rewarded.
• Both keep relationships at arm's length Limited social interaction depth; cooperation exists but no close personal relationships or emotional sharing described.

Why it matches

• Both are driven by steady progression Strong emphasis on accumulating weapons, upgrades, buffs, and meta progression to enhance power and abilities.
• Both are violent Enjoyment of combat, destruction, and gore is a core part of gameplay.
• Both are built to keep you coming back Many reviews mention addictive gameplay loop and long sessions with repeated runs and desire to improve builds.

Why it matches

• Both are violent Combat involves mech battles with destruction and damage effects, emphasizing combat and destruction.
• Both reward thinking ahead Highly strategic turn-based combat requiring planning, positioning, and tactical problem solving.
• Both are driven by steady progression Strong emphasis on acquiring new parts, upgrading equipment, and unlocking skills to improve mech performance.

Why it matches

• Both leave room to create Robust map editor and customization options allow players to create and share unique maps and scenarios.
• Both are violent Combat against alien enemies with various weapons and explosions is a core enjoyable element.
• Both are driven by steady progression Research points, weapon upgrades, and unlocking new units provide a clear sense of advancement.

Why it matches

• Both are driven by steady progression Strong emphasis on accumulating upgrades, unlocking new blocks, weapons, and mods to advance.
• Both leave room to create Strong creative elements with base building, map editor, and custom mission creation.
• Both are built to keep you coming back High replay value with long sessions, grinding for upgrades, and ongoing defense challenges encourage habitual play.