Terraria

Terraria is a single-player and multiplayer 2D sandbox action-adventure game. A player awakens in a procedurally generated world of forests, deserts, oceans, caverns, and ruins. Survival and exploration are the immediate objectives: gather materials, fashion tools, and build shelter before nightfall when stronger creatures roam. Progression emerges from exploring deeper and farther, locating rare resources, and confronting powerful bosses that gate access to new materials and areas. Defeating a certain boss in the underworld transforms the world into a more dangerous state known as Hardmode, introducing tougher enemies, new ores, and additional biomes.

Play centers on mining, crafting, building, and combat. Most terrain blocks, plants, and furnishings can be mined and placed, and hundreds of crafting recipes turn gathered wood, ores, and monster drops into gear, tools, weapons, furniture, and vehicles. The crafting interface shows every recipe currently available at the player’s nearby stations. Equipment spans melee, ranged, magic, and summoner archetypes, with accessories that grant mobility and utility. Bosses and events reward unique materials that unlock the next layer of recipes and exploration.

The world’s surface and its layered cave system contain many themed biomes. Early enemies include slimes by day and zombies and flying eyes by night, while later regions introduce corruption or crimson biomes that spread through soil and stone and, after Hardmode begins, the hallow. Environmental hazards, rare structures, and biome-specific loot encourage preparation and specialized gear.

Non-player characters can settle in player-built housing. Meeting simple room requirements and fulfilling discovery or progression conditions invites merchants, medics, crafters, and other specialists who sell items, provide services, and enable new systems such as reforging or dye application. Towns improve safety by reducing enemy spawns nearby, and some NPCs offer quests that guide exploration.

Time of day influences encounters and activities. Night brings stronger surface foes and certain events, while weather and lunar cycles can trigger invasions and seasonal occurrences. Structured events, such as arena-style waves, supply materials and equipment otherwise unobtainable, making base defense and arena construction a recurring part of play.

Multiple difficulty modes adjust enemy strength, loot, and progression. Expert and Master modes increase challenge and add item rewards, while Journey mode offers assisted play with research, item duplication, and world control settings for experimentation or casual exploration. Player versus player is optional in multiplayer sessions.

Terraria supports cooperative and competitive online play through hosted sessions or dedicated servers. Worlds are cooperative by default, and players can enable PvP, trade items, and share buildings and arenas.