Dadren is a sprite-based top-down turn-based data-driven survival game engine.

Configurable tilesets:

Custom tilesets allow for the rehauling of the game's graphical look

Procedurally generated world:

Algorithmically generated world for high variance and replayability

JSON driven entity components:

Data driven content allows for rapid creation and player modification

Advanced World-generation:

Using blended noise complex biomes can be created.

Procedurally colored tile variants:

Recoloring tiles at runtime for seasonal and other effects

Global illumination and point lighting:

Utilizing sprite tinting to achieve 2D lighting effects

Day cycle:

A diurnal cycle that has graphical and gameplay consequences

Seasonal cycle

A seasonable cycle that has graphical and gameplay consequences

Physicality:

Items have weight and volume and potentially other physical properties

Composites:

Many items are composed of two or more combined items

Deconstructable:

Many composites are able to be deconstructed into their constitutent parts

Smashing:

Bashables and slicables can be deconstructed with physical attacks

Basic Materials:

Items which cannot be crafted from other items are basic materials

Containers:

Some items are able to contain other items based on relative volume and capacity

Obstacles:

Some items prevent movement and the placement of items

Surfaces:

Some obstacles are able to support other items on the same tile

Quality:

Most items have a quality which determines its general effectiveness

Durability:

Expiration of item durability leads to deconstruction or complete destruction

Categorical Actions:

Any action performable in the world belongs to some skill category

Categorical Competence:

A base categorical Competence determines a base bonus for associated actions

Parametric Skills:

Skills are specific and grant bonuses based on specific item types involved

Basic materials based crafting:

Combining multiple materials allows for the production of goods

Item deconstruction:

The ability to deconstruct items into constituent materials

Item customizations and modifications:

Perform modifications that change items without changing the base type

Materials and Craftmanship variance:

Skill and materials and morale directly correlate to production quality

Basic Needs:

Hunger, thirst and morale are constant upkeep factors

Physiology modeling:

Condition of body parts and their related tissues and bones are tracked

Immunology modeling:

Disease and afflictions can have stat and gameplay related effects

Morale effects:

The efficency of actions and the quality of crafting is affected by morale

Satisfaction:

The efficiency of actions and the quality of crafting can affect morale

Area Clothing:

Clothing and armor types are fitted and worn on specific areas of the body

Multi-area Clothing:

Some clothing is worn on multiple areas at once

Coverage and Warmth:

Different clothing provides varying levels of coverage and warmth

Encumberance:

Different clothing provides varying levels of encumberance to body parts

Action Effects:

Actions relying on specific body parts may be effected by clothing encumberance

Layering:

Multiple items may be worn on the same area for combined effects and encumberance

Fitting and Modifications:

Items may undergo fitting and other modifications to change their properties

Stateful Clothing:

Some clothing can have various settings and states such as a mask with a visor

Biome specificity:

Certain plants grow in certain biomes

Growth Modeling:

Plants grow and develop overtime changing their look and characteristics

Seasonal Variance:

Plants may exhibit various properties during specific seasons

Non-deconstructable Smashables:

Plants can be smashed for materials but not deconstructed (they can't be picked up)

Hardiness:

A plant's hardiness determines the difficulty in smashing (slashing or bashing) it

Flowering:

Plants may flower during specific seasons allowing for harvest of unique materials

Harvestable:

Some plants may be harvestable for specific materials without smashing

Plantable:

Plants that produce seeds may be planted and if treated will grow as normal

Biome specificity:

Certain creatures appear in certain biomes

Seasonal Variance:

Certain creatures may only appear during certain seasons

Behavioral State-machine:

Creature behavior is driven by a graph of states and transitions