Features

• Added Spidertron and Spidertron remote.
• Added Freeplay crash site.

Graphics

• Added polluted water visual effect.
• Added biter base decoratives.
• New visual effects for the atomic bomb.

Sounds

• Significantly reduced the volume of robots deconstructing and entity destroyed alert.
• Reverted mining drill sound to the 0.17 version with high pitched part removed.
• Reverted inserter, furnace and assembling machine sounds to the 0.17 version.
• Changed the checkbox click sound (based on dropdown open sound).
• Changed the "green button sound" to have a normal button sound.

Modding

• Added EnemySpawnerPrototype and TurretPrototype properties: spawn_decoration and spawn_decoration_on_expansion.
• EntityPrototype water_reflection can now be defined inside graphics_set.
• Added ExplosionPrototype properties: Explosion prototype: scale_animation_speed, fade_in_duration, fade_out_duration, scale_in_duration, scale_out_duration, scale_end, scale_increment_per_tick, scale_initial, scale_initial_deviation, scale, and scale_deviation.
• ParticleSourcePrototype particle is now optional, added smoke property.
• Added ProjectilePrototype properties: speed_modifier and turning_speed_increases_exponentially_with_projectile_speed.
• Added LightDefinitionItem::source_orientation_offset.
• Added DecorativePrototype::decal_overdraw_priority.
• Added AreaTriggerItem::show_in_tooltip.
• Added 'set-tile' and 'camera-effect' trigger effects.
• Added CreateDecorativesTriggerEffectItem properties: apply_projection and spread_evenly.
• Added CreateExplosionTriggerEffectItem properties: max_movement_distance, inherit_movement_distance_from_projectile and cycle_while_moving.
• Added DamageTriggerEffectItem properties: vaporize, lower_distance_threshold, upper_distance_threshold, lower_damage_modifier and upper_damage_modifier.
• Added PlaySoundTriggerEffectItem properties: min_distance, max_distance, volume_modifier, audible_distance_modifier and play_on_target_position.
• Added ProjectileAttackParameters::projectile_orientation_offset.
• Added build_blueprint_small, build_blueprint_medium and build_blueprint_large to utility sounds.
• Renamed build_big utility sound to build_large.

Scripting

• Added LuaEntity::autopilot_destination, vehicle_automatic_targeting_parameters and time_to_next_effect read/write.
• Added LuaItemStack::connected_entity read/write.
• Added LuaEntity::is_entity_with_force, is_entity_with_owner and is_entity_with_health read.
• Added LuaEntity::spawn_decorations().
• Added on_cutscene_cancelled, on_player_configured_spider_remote and on_player_used_spider_remote events.
• Added optional spawn_decorations parameter to LuaGameScript::create_entity.

Use the automatic updater if you can (check experimental updates in other settings) or download full installation at http://www.factorio.com/download/experimental.